Document:

<PAGE>   1
                                                                     Exhibit 4.4

                           SUBSCRIPTION AND AGREEMENT

To:  Quality Care Solutions, Inc.
     5030 East Sunrise Drive
     Phoenix, Arizona 85044
     Attention: Robert F. Theilmann

Gentlemen:

SUBSCRIPTION FOR SHARES

     1.  On and subject to the terms and conditions set forth herein, each of
the undersigned (each, a "SUBSCRIBER"), severally and not jointly, hereby offers
to purchase from Quality Care Solutions, Inc., a Nevada corporation (the
"COMPANY"), that number of shares (the "SHARES") of the Company's Series C 12%
Cumulative Convertible Preferred Stock (the "SERIES C PREFERRED") set forth
below the Subscriber's signature on the signature page hereof. The purchase
price is $0.77 per Share. It is anticipated that the purchase and sale of the
Shares hereunder shall be consummated at a closing (the "CLOSING"). The Closing
will be held at the offices of Bryan Cave LLP, Two North Central Avenue, Suite
2200, Phoenix, Arizona at 10:00 a.m. (Phoenix time), on September 28, 1998, or
at such other time and place upon which the Subscriber and the Company shall
agree. At the Closing, the Company will deliver to the Subscriber a certificate
or certificates, registered in the Subscriber's name, representing the Shares to
be purchased by the Subscriber at the Closing, against payment of the purchase
price therefor, by check payable to the Company, or by wire transfer per the
Company's instructions.

     Each Subscriber has reviewed (i) the Series C Preferred Stock Purchase
Agreement dated May 29, 1998 (the "PURCHASE AGREEMENT") by and among the Company
and the purchasers listed on the Schedule of Purchasers attached thereto and
(ii) the Shareholder Rights Agreement dated May 29, 1998 by and among the
Company, certain holders of Series A Preferred Stock of the Company, certain
holders of Series B Preferred Stock of the Company, the purchasers of Series C
Preferred Stock of the Company, the holders of the Warrants and certain
significant shareholders (the "SHAREHOLDER RIGHTS AGREEMENT"). Capitalized
terms used without definition in this Agreement shall have the meanings
ascribed to such terms in the Purchase Agreement.

INCORPORATION OF TERMS AND CONDITIONS OF THE PURCHASE AGREEMENT

     Each Subscriber agrees that the provisions of Sections 3 through 8 of the
Purchase Agreement are hereby incorporated herein by reference as though fully
set forth in this Subscription Agreement, with the following changes:

     2.1  Except as set forth on Exhibit A attached hereto, the Company
represents and warrants to each Subscriber that, as of the date of the Closing
at which the Subscriber consummates

<PAGE>   2
its purchase of Shares purchased by it hereunder, each of the representations
and warranties of the Company set forth in Section 3 of the Purchase Agreement
are true and correct in all material respects; provided, however, that for
purposes of subsection 3.20 of the Purchase Agreement as incorporated herein,
the reference to "the three month period ended March 31, 1998" shall be deemed
to read as follows: "the six month period ended June 30, 1998."

     2.2  Each of the representations and warranties set forth in Section 4 of
the Purchase Agreement is hereby made by the Subscriber to the Company.

     2.3  Each Subscriber's obligation to purchase any Shares is, unless waived
in writing by the Subscriber, subject to the fulfillment as of the date of the
Closing of the conditions set forth in Section 6 of the Purchase Agreement (and
the term "Purchaser" or "Purchasers" therein shall be deemed to be a reference
to the Subscriber). In addition, the Subscriber's obligations shall be subject
to the condition that an amendment to the Series C Certificate increasing to
not less than 6,826,983 the aggregate number of authorized shares of the Series
C Preferred shall have been filed in the office of the Nevada Secretary of
State.

     2.4  The Company's obligation to sell and issue the Shares at the Closing
is, unless waived in writing by the Company, subject to the fulfillment as of
the date of the Closing of the conditions set forth in Section 7 of the
Purchase Agreement (and the term "Purchaser" or "Purchasers" therein shall be
deemed to be a reference to the Subscriber or Subscribers, as appropriate). In
addition, the Company's obligation to sell and issue the Shares at the Closing
is subject to the further condition that on or before the date of the Closing
that Company shall have received such consents to the transactions contemplated
by this Subscription and Agreement as may be required of the holders of shares
of its preferred stock or other capital stock.

     2.5  Each Subscriber shall be a "Purchaser" under the Purchase Agreement
on the date hereof, and shall be entitled to the benefits of the Purchase
Agreement, subject to the terms and provisions of this Subscription and
Agreement. The Subscriber authorizes the Company to add to Schedule I to the
Purchase Agreement certain information concerning the Subscriber, including the
Subscriber's name, address, telefax number, the number of Shares purchased by
the Subscriber, the dollar amount of the purchase, and the date of purchase of
the Shares.

     2.6  Each Subscriber, upon becoming a "Purchaser" under the Purchase
Agreement as aforesaid, shall also become a party to the Shareholder Rights
Agreement dated as of May 29, 1998, by and among the Company, the "Purchasers"
under the Purchase Agreement, and the other persons and entities identified
therein. Each Subscriber authorizes the Company to add the Subscriber's name,
address and share holdings to the schedule of holders of the shares of Series C
Preferred Stock which is part of Exhibit A to the said Shareholder Rights, such
authority to be effective upon the Closing.

                                       2

<PAGE>   3
GOVERNING LAW

     3.1  This Subscription and Agreement shall be construed in accordance with
and governed in all respects by the laws of the State of Nevada without
application of the principles of conflicts of laws.

MISCELLANEOUS

     4.1  The Company shall bear its own expenses incurred on its behalf with
respect to this Subscription and Agreement and the transactions contemplated
hereby and will pay the reasonable out-of-pocket expenses of the Subscribers,
including legal fees and expenses, up to a maximum of $5,000.00, of Squire,
Sanders & Dempsey L.L.P., as counsel to the Subscribers.

     4.2  This Subscription and Agreement may be executed in counterparts,
each of which shall be an original, and all of which together shall constitute
one instrument.

     IN WITNESS WHEREOF, the undersigned has executed and delivered this
Agreement on the date set forth below.

Dated:                    , 1998
      --------------------

                         Subscriber:    CORNERSTONE FUND 1, LLC
                                        By: Cornerstone Equity Partners, LLC
                                            Its Attorney-in-Fact

                                        By: /s/ Illegible Signature
                                            ------------------------------------
                                        Title: Partner
                                              ----------------------------------

                                        No. of Shares:   791,396
                                                      --------------------------

                                        Address of Subscriber for Notices:

                                        5050 N. 40th St.  Ste. 310
                                        ----------------------------------------

                                        Phoenix, AZ 85018
                                        ----------------------------------------

                                        Telefax Number:  (602) 956-8080
                                                       -------------------------

                                       3
<PAGE>   4
                         Subscriber:    VENTURES FUND I, LLC
                                        By: Cornerstone Equity Partners, LLC
                                            Its Attorney-in-Fact

                                        By: /s/ Illegible Signature
                                            ------------------------------------
                                        Title: Partner
                                              ----------------------------------

                                        No. of Shares:   182,630
                                                      --------------------------

                                        Address of Subscriber for Notices:

                                        5050 N. 40th St.  Ste. 310
                                        ----------------------------------------

                                        Phoenix, AZ 85018
                                        ----------------------------------------

                                        Telefax Number:  (602) 956-8080
                                                       -------------------------

Accepted this      day of September, 1998:
             ------

QUALITY CARE SOLUTIONS, INC.

By:
   --------------------------------------

Title:
      -----------------------------------

                                       4
<PAGE>   5
                    EXHIBIT A TO SUBSCRIPTION AND AGREEMENT

                               Updated Exhibit B
                 to Series C Preferred Stock Purchase Agreement

                             SCHEDULE OF EXCEPTIONS

3.4  CAPITALIZATION

     The Company's representation regarding its authorized capital stock is
updated as follows:

     As of September 17, 1998, the Company had issued 5,636,325 shares of its
Series C Preferred Stock, and had authorized the issuance of an additional
1,190,658 shares of its Series C Preferred Stock (resulting in a total of
6,826,983 authorized shares of Series C Preferred Stock). The Company has
reserved 6,826,983 shares of Common Stock for issuance upon conversion of the
Series C Preferred.

3.9  MATERIAL AGREEMENTS

     Receipts

     Software License Agreements

     1.   American Family Care of Utah, Inc., effective 9/1/98, Initial Term 3
years

     2.   Global Health Care Corporation, effective 4/10/98, Initial Term 5
years

     3.   Delta Dental of Missouri, effective 3/2/98, Initial Term 5 years

     4.   Physicians Health Networks, Inc. effective 10/27/97, Initial Term 5
years

     5.   Delta Dental Plan of Arizona, Inc. effective 10/8/97, Initial Term 5
years

     6.   Health Plan Partners, effective 5/15/97, Initial Term 5 years

     7.   Managed Care Systems, Inc., effective 11/25/98, Initial Term 5 years

     8.   Schaller Anderson of Arizona, L.L.C., effective 11/23/96, Initial
Term 5 years

     9.   Molina Medical Centers, Inc. effective 5/23/96, Initial Term 5 years

     10.  Pima County, Effective 1/8/96, Initial Term 3 years

     11.  Yuma Phy. Hospital Organization, Inc. effective 4/25/95, Initial Term
3 years

     12.  Comprehensive AHCCS Plan, Inc. (CAP) effective 4/1/95, Initial Term 3
years

<PAGE>   6
Expenditures

     Group Health Insurance
          Health Partners Health Plans
     Group Dental Insurance
          Delta Dental Of Arizona
     General Liability Insurance
          Federal Insurance Company
     Directors & Officers Liability Insurance
          National Union Insurance Company
     Equipment Leasing
          AT&T Capital Leasing, principle $40,000
          Leasetec System Credit, principle $103,400
          Dana Commercial Credit, principle $16,000
          Information Leasing Corp., principle $249,000
     Professional Fees, Accounting
          KPMG
     Professional Fees, Legal
          Westover & Westover
          Bryan Cave
          Gallagher Kennedy
     Facility/Office Lease
          Transwestern Investment Company L.L.C.
     Utilities, Telephone
          US West Communications
     Utilities, Electrical
          Salt River Project

                                       2
<PAGE>   7

                            MANAGEMENT RIGHTS LETTER

                               September   , 1998

Cornerstone Fund I, LLC
Ventures Fund I, LLC
5050 North 40th Street
Phoenix, Arizona 85018

     Re:  Management Rights of Cornerstone Fund I, LLC and Ventures Fund I, LLC

Ladies and Gentlemen:

     This letter will confirm our agreement that pursuant to the purchase of an
aggregate of shares of Series C Preferred Stock of Quality Care Solutions, Inc.
(the "Company") by Cornerstone Fund I, LLC and Ventures Fund I, LLC
(collectively "Investor"). Investor will be entitled to the following
contractual management rights, in addition to rights to nonpublic financial
information, inspection rights, and other rights specifically provided to all
investors in the current financing:

     1.   Investor shall be entitled to consult with and advise management of
the Company on significant business issues, including management's proposed
annual operating plans, and management will meet with Investor within thirty
days after the end of each fiscal quarter at the Company's facilities at
mutually agreeable times for such consultation and advice and to review
progress in achieving said plans;

     2.   Investor may examine the books and records of the Company and inspect
its facilities and may request information at reasonable times and intervals
concerning the general status of the Company's financial condition and
operations, provided that access to highly confidential proprietary information
and facilities need not be provided except to the extent provided to all of the
Company's investors under the terms of the current financing; and

     3.   If Investor is not represented on this Company's Board of Directors,
the Company shall invite a representative of Investor to attend all meetings of
its Board of Directors in a nonvoting observer capacity and, in this respect,
shall give such representative copies of all notices, minutes, consents and
other material that it provides to its directors. Such representative may
participate in discussions of matters brought to the Board of Directors.

     Investor agrees, and will cause any representative of Investor to agree,
to hold in confidence and trust and not use or disclose any confidential
information provided to or learned by it in connection with its rights under
this letter.
<PAGE>   8
     The rights described herein shall terminate and be of no further force or
effect upon (i) the consummation of the sale of the Company's securities
pursuant to a registration statement filed by the Company under the Securities
Act of 1933, as amended, in connection with a firm commitment underwritten
offering of its securities to the general public, or (ii) such time as Investor
ceases to hold shares of Series C Preferred Stock (or securities issued upon
conversion of or in exchange therefor). The confidentiality provisions hereof
will survive any such termination.

     The letter may be executed in one or more counterparts, each of which shall
be deemed to be an original, but all of which shall be one and the same
document.

                                       Very truly yours,

                                       Quality Care Solutions, Inc.

                                       --------------------------------------
                                       Name: Gregory S. Anderson
                                       Title: President

Agreed and Accepted as of
the __ day of September, 1998:

Cornerstone Fund I, LLC
By: Cornerstone Equity Partners, LLC
    Its Attorney-in-Fact

By /s/ (illegible signature)
   ---------------------------------
Title Partner
      ------------------------------

Ventures Fund I, LLC
By: Cornerstone Equity Partners, LLC
    Its Attorney-in-Fact

By /s/ (illegible signature)
   ---------------------------------
Title Partner
      ------------------------------

          [Counterpart Signature Page to Quality Care Solutions, Inc.
                           Management Rights Letter]

                                       2

<PAGE>   9
     Investor agrees, and will cause any representative of Investor to agree, to
hold in confidence and trust and not use or disclose any confidential
information provided to or learned by it in connection with its rights under
this letter.

     The rights described herein shall terminate and be of no further force or
effect upon (i) the consummation of the sale of the Company's securities
pursuant to a registration statement filed by the Company under the Securities
Act of 1933, as amended, in connection with a firm commitment underwritten
offering of its securities to the general public, or (ii) such time as Investor
ceases to hold shares of Series C Preferred Stock (or securities issued upon
conversion of or in exchange therefor). The confidentiality provisions hereof
will survive any such termination.

     The letter may be executed in one or more counterparts, each of which shall
be deemed to be an original, but all of which shall be one and the same
document.

                                       Very truly yours,

                                       Quality Care Solutions, Inc.

                                       /s/ Gregory S. Anderson
                                       --------------------------------------
                                       Name: Gregory S. Anderson
                                       Title: President

Agreed and Accepted as of
the __ day of September, 1998:

Cornerstone Fund I, LLC

By
   ---------------------------------
Title
      ------------------------------

Venture Fund I, LLC

By
   ---------------------------------
Title
      ------------------------------

          [Counterpart Signature Page to Quality Care Solutions, Inc.
                           Management Rights Letter]

                                       2<PAGE>   1
                                                                     Exhibit 4.5
                                                                [EXECUTION COPY]

                      CONVERTIBLE NOTE PURCHASE AGREEMENT

     This Convertible Note Purchase Agreement (this "Agreement") is entered
into as of July 20, 1999 by and among Quality Care Solutions, Inc., a Nevada
corporation (the "Company"), and the Investors listed on Exhibit A hereto
(each, an "Investor" and, collectively, the "Investors").

                                  WITNESSETH:

     WHEREAS, the Company desires to sell, and the Investors desire to purchase,
$900,000 in aggregate principal amount of the Company's 10% Convertible
Promissory Notes due September 1, 2004, which notes shall be in substantially
the form of Exhibit B hereto (the "Notes"); and

     WHEREAS, the parties wish to enter into this Agreement to set forth certain
terms and conditions in connection with the purchase and sale of the Notes,
including the issuance by the Company of certain warrants, in substantially the
form of Exhibit C hereto (the "Warrants"), in order to induce the Investors to
purchase the Notes.

     NOW, THEREFORE, in consideration of the mutual promises and other
consideration hereinafter set forth, the adequacy and receipt of which is hereby
acknowledged, the parties agree as follows:

1.   PURCHASE AND SALE OF NOTES AND WARRANTS.

     1.1  DESCRIPTION OF THE NOTES AND WARRANTS. The Company has authorized the
issuance and sale of (i) $900,000 in principal amount of the Notes and (ii)
Warrants to purchase an aggregate of 450,000 shares of Common Stock of the
Company (the "Warrant Shares"). The Notes are convertible into shares of Series
D Preferred Stock (the "Shares") of the Company on the terms and conditions
hereinafter set forth. The Notes, Warrants, Shares and Warrant Shares are
sometimes collectively referred to herein as the "Securities".

     1.2  PURCHASE AND SALE OF THE NOTES AND WARRANTS. At the Closing (as
hereinafter defined) and subject to the terms and conditions hereof and in
reliance upon the representations, warranties and agreements contained herein,
the Company will issue and sell to each Investor, and each Investor will buy
from the Company, the amount of Notes and number of Warrants set forth opposite
such Investor's name on Exhibit A hereto for the aggregate consideration (the
"Purchase Price") set forth on such Exhibit. Upon closing, the Notes and
Warrants shall be delivered by the Company to the Investors in accordance with
Exhibit A hereto.

     1.3  CLOSING. The closing of the purchase and sale of the Notes and
Warrants (the "Closing") shall be held at 10:00 a.m. on October 29, 1999, or on
such other date as to which the Company and the Investors may agree (the date of
such Closing being herein referred to as the "Closing Date"). The Closing shall
be held at the offices of Bryan Cave LLP, 1 Renaissance
<PAGE>   2
Square, Two North Central Avenue, Suite 2200, Phoenix, Arizona 85004, or at
such other place as to which the Company and the Investors may agree.

     1.4  DELIVERIES OF COMPANY AT CLOSING. At the Closing or on such other
date as may be mutually agreed between the Company and the Investors, the
Company shall execute and deliver or cause to be executed and delivered to each
Investor the following: (i) a Note in substantially the form of Exhibit B
hereto, (ii) a Warrant in substantially the form of Exhibit C hereto and (iii)
such other documents, certificates and instruments as may reasonably be
required by the Investors in connection with the transactions contemplated
hereby.

     1.5  DELIVERIES OF INVESTORS AT CLOSING. At the Closing or on such other
date as may be mutually agreed between the Company and the Investors, the
Investors shall deliver or cause to be delivered to the Company the Purchase
Price.

2.   REPRESENTATIONS AND WARRANTIES OF THE COMPANY.

     Subject to and except as specifically disclosed by the Company in the
Schedule of Exceptions attached as Exhibit D hereto, the Company represents and
warrants to each Investor that:

     2.1  ORGANIZATION AND STANDING. The Company is a corporation duly organized
and existing under, and by virtue of, the laws of the State of Nevada and is in
good standing under such laws. The Company has the requisite corporate power and
authority to own and operate its properties and assets, and to carry on its
business as presently conducted. The Company is presently qualified to do
business as a foreign corporation in Arizona and there is no other jurisdiction
in which the failure to be so qualified would have a material adverse effect on
the business or financial condition of the Company.

     2.2  CORPORATE POWER. The Company has all requisite legal and corporate
power and authority to execute and deliver this Agreement, the Notes and the
Warrants and to carry out and perform its obligations under the terms of this
Agreement and the Notes and Warrants.

     2.3  SUBSIDIARIES. The Company has no subsidiaries or affiliated companies
and does not otherwise own or control, directly or indirectly, any equity
interest in any corporation, association or business entity.

     2.4  CAPITALIZATION. The authorized capital stock of the Company consists
of 100,000,000 shares of Common Stock and 10,000,000 shares of Preferred Stock,
of which 2,861,382 have been designated Series A Preferred Stock ("Series A
Preferred"), 160,000 have been designated as Series B Preferred Stock ("Series B
Preferred") and 6,875,685 have been designated as Series C Preferred Stock
("Series C Preferred"). Immediately prior to the Closing, the total number of
outstanding shares of Common Stock was 9,376,962, the total number of
outstanding shares of Series A Preferred Stock was 2,861,382, the total number
of outstanding shares of Series B Preferred Stock was 160,000 and the total
number of outstanding shares of Series C Preferred Stock was 6,826,983. All
currently outstanding shares of Common Stock, Series A Preferred Stock and
Series of Preferred Stock and Series C Preferred Stock have been duly authorized
and validly issued and are fully paid and nonassessable. Except as provided in

                                       2

<PAGE>   3
the Company's Articles of Incorporation, certificates of designation, as
amended, for each of the Series A Preferred Stock, Series B Preferred Stock and
Series C Preferred and Bylaws (collectively, the "Charter Documents"), and
except for 3,782,896 outstanding options and 585,844 outstanding warrants to
purchase shares of the Company's Common Stock, there are no options, warrants
or other rights to purchase or acquire any of the Company's authorized and
unissued capital stock.

     2.5  AUTHORIZATION.  All corporate action on the part of the Company, its
directors and stockholders necessary for the authorization, execution, delivery
and performance of this Agreement, the Notes and the Warrants by the Company,
and the performance of all of the Company's obligations hereunder and thereunder
has been taken or will be taken prior to the Closing, other than the filing of a
certificate of designation creating the Company's Series D Preferred Stock (the
"Series D Certificate"). This Agreement, the Notes and the Warrants, when
executed and delivered by the Company, shall constitute valid and binding
obligations of the Company, enforceable in accordance with their terms, subject
to laws of general application relating to bankruptcy, insolvency and the relief
of debtors and rules of law governing specific performance, injunctive relief or
other equitable remedies. The Shares, when and if issued in compliance with the
provisions of the Notes, will be validly issued, fully paid and nonassessable.
The Warrant Shares have been duly and validly reserved and, when issued in
compliance with the provisions of the Warrants, will be validly issued, fully
paid and nonassessable.

     2.6  PROPRIETARY RIGHTS.  The Company has title and ownership of, or a
valid right to use, all patents, trademarks, service marks, trade names,
copyrights, trade secrets, information, proprietary rights and processes used
in or necessary for its business as now conducted without any conflict with or
infringement of the rights of others. The Company has not violated any of the
patents, trademarks, service marks, trade names, copyrights or trade
proprietary rights of any other person or entity. To the best knowledge of the
Company, none of its employees is obligated under any contract (including
licenses, covenants or commitments of any nature) or other agreement, or
subject to any judgment, decree or order of any court or administrative agency,
that would interfere with the use of his or her best efforts to promote the
interests of the Company or that would conflict with the Company's business as
proposed to be conducted.

     2.7  LITIGATION.  There are no material actions, suits, proceedings or
investigations pending or, to the Company's knowledge, threatened against the
Company or its properties before any court or governmental agency. The foregoing
includes, without limitation, material actions pending or threatened (or any
basis therefor known to the Company) involving the prior employment of any of
the Company's employees, their use in connection with the Company's business of
any information or techniques allegedly proprietary to any of their former
employers, or their obligations under any agreements with prior employers. The
Company is not a party or subject to the provisions of any material order, writ,
injunction, judgment or decree of any court or government agency or
instrumentality. There is no material action, suit, proceeding or investigation
by the Company currently pending or which the Company intends to initiate.

     2.8  TITLE TO PROPERTIES AND ASSETS; LIENS.  The Company has good and
marketable title to its properties and assets, and has good title to all its
leasehold interests, in each case subject to no mortgage, pledge, lien,
encumbrance or charge, other than (i) the lien of current

                                       3
<PAGE>   4
taxes not yet due and payable, and (ii) minor liens and encumbrances which,
when considered individually or together, do not materially detract from the
value of the property subject thereto or materially impair the operations of
the Company, and such properties and assets are sufficient to enable the
Company to carry on its business as presently conducted.

     2.9  COMPLIANCE WITH OTHER INSTRUMENTS.  The Company is not in violation of
or default under: (i) any term of its Charter Documents, as amended to date;
(ii) any material term or provision of any mortgage, indebtedness, indenture,
contract, agreement, instrument, judgment or decree; or (iii) any material
order, statute, rule or regulation applicable to the Company. The execution,
delivery and performance of this Agreement, the Notes and the Warrants have not
resulted and will not result in any violation of, or conflict with, or
constitute a default under, the Company's Charter Documents, as amended to date,
and have not and will not result in any violation of, or conflict with, or
constitute a default under, any of its material agreements nor result in the
creation of any mortgage, pledge, lien, encumbrance or charge upon any of the
properties or assets of the Company.

     2.10  EMPLOYEES.  The Company has no employment agreement with any of its
employees that are not terminable by the Company at will, and is not a party to
any collective bargaining agreements.

     2.11  GOVERNMENTAL CONSENTS.  No consent, approval or authorization of or
designation, declaration or filing with any governmental authority on the part
of the Company is required in connection with the valid execution and delivery
of this Agreement, the Notes and the Warrants, or the offer, sale or issuance of
the Shares or the Warrant Shares, or the consummation of any other transaction
contemplated hereby, except (a) the filing of the Series D Certificate in the
office of the Nevada Secretary of State and (b) the qualification (or taking of
such action as may be necessary to secure an exemption from qualification, if
available) of the offer and sale of the Shares and Warrant Shares under
applicable Blue Sky laws, which filings and qualifications, if required, will be
accomplished in a timely manner.

     2.12  BROKERS OR FINDERS.  Neither the Company nor any Investor, as a
result of any action taken by the Company, have incurred or will incur,
directly or indirectly, any liability for brokerage or finders' fees or agents'
commissions or any similar charges in connection with this Agreement or the
transactions contemplated hereby.

     2.13  PERMITS.  The Company has all franchises, permits, licenses, and any
similar authority necessary for the conduct of its business as now being
conducted by it, the lack of which could materially and adversely affect the
business, properties, prospects or financial condition of the Company. The
Company is not in default in any material respect under any of such franchises,
permits, licenses or other similar authority.

     2.14  INSURANCE.  The Company has insurance policies in effect covering the
risks associated with its business and properties which are of such character
and in such amounts as are customarily maintained by entities engaged in the
same or similar business and similarly situated.

                                       4
<PAGE>   5
     2.15. FINANCIAL STATEMENTS. The Company has delivered to the Investor an
audited balance sheet and profit and loss statement as of and for the annual
period ended December 31, 1998 (the "Annual Financial Statements") and unaudited
balance sheet and profit and loss statement as of and for the six-month period
ended June 30, 1999 (collectively, the "Financial Statements"). The Financial
Statements have been complied on a consistent basis throughout the period
indicated and with each other. The Financial Statements fairly present the
financial condition and operating results of the Company as of the dates, and
for the periods, indicated therein, subject to normal year-end audit
adjustments. Except as set forth in the Financial Statements, the Company has no
material liabilities, contingent or otherwise, other than (i) liabilities
incurred in the ordinary course of business subsequent to June 30, 1999 and (ii)
obligations under contracts and commitments incurred in the ordinary course of
business and not required under generally accepted accounting principles to be
reflected in the Financial Statements, which, in both cases, individually or in
the aggregate are not material to the financial condition or operating results
of the Company. The Company hereby represents and warrants that the Annual
Financial Statements have been, and all yearly financial statements thereafter
shall be, audited by an independent certified public accounting firm of national
recognition and such financial statements shall be prepared in accordance with
generally accepted accounting principles.

     2.16. EMPLOYEE BENEFIT PLANS. The Company does not have any Employee
Benefit Plans, as defined in the Employee Retirement Income Security Act of
1974.

     2.17 TAX RETURNS AND PAYMENTS. The Company has filed all tax returns and
reports as required by law. These returns and reports are true and correct in
all material respects. The Company has paid all taxes and other assessments
due, except to the extent the Company, in good faith, is contesting such
amounts.

3.   REPRESENTATIONS AND WARRANTIES OF THE INVESTOR.

     Each Investor represents and warrants to the Company that:

     3.1 PREEXISTING RELATIONSHIP WITH COMPANY; BUSINESS AND FINANCIAL
EXPERIENCE. It either (i) has a prior business and/or personal relationship
with the Company and/or its officers and directors, or (ii) by reason of its
business or financial experience or the business or financial experience of its
professional advisors who are unaffiliated with the Company, and who are not
compensated by the Company, it has the capacity to protect its own interests in
connection with the purchase of the Securities.

     3.2 INVESTMENT INTENT; BLUE SKY. It is acquiring the Securities for
investment for its own account, not as a nominee or agent, and not with the
view to, or for resale in connection with, any distribution thereof. It
understands that the issuance of the Securities, including the issuance of the
Shares and the Warrant Shares, has not been, and will not be, registered under
the Securities Act of 1933, as amended (the "Securities Act"), by reason of a
specific exemption from the registration provisions of the Securities Act, the
availability of which depends upon, among other things, the bona fide nature of
the Investor's investment intent and the accuracy of the Investor's
representations as expressed herein. The Investor's address set forth on
Exhibit A

                                       5
<PAGE>   6
represents the Investor's true and correct state of domicile, upon which the
Company may rely for the purpose of complying with applicable "Blue Sky" laws.

     3.3  RULE 144. It acknowledges that the Shares and the Warrant Shares must
be held indefinitely unless subsequently registered under the Securities Act or
unless an exemption from such registration is available. It is aware of the
provisions of Rule 144 promulgated under the Securities Act which permit
limited resale of shares purchased in a private placement subject to the
satisfaction of certain conditions, including, among other things, the
existence of a public market for the shares, the availability of certain
current public information about the Company, the resale occurring not less
than one year after a party has purchased and paid for the security to be sold,
the sale being effected through a "broker's transaction" or in a transaction
directly with a "market maker," and the number of shares being sold during any
three-month period not exceeding specified limitations.

     3.4  NO PUBLIC MARKET. It understands that no public market now exists for
any of the securities issued by the Company and that the Company has made no
assurances that a public market will ever exist for the Company's securities.

     3.5  RESTRICTIONS ON TRANSFER; RESTRICTIVE LEGENDS. It understands that
the transfer of the Shares and the Warrant Shares is restricted by applicable
state and Federal securities laws, and that the certificates representing the
Shares and the Warrant Shares will be imprinted with legends restricting
transfer except in compliance therewith.

     3.6  AUTHORIZATION. All action on the part of the Investor's partners,
board of directors and stockholders, as applicable, necessary for the
authorization, execution, delivery and performance of this Agreement, the Note
and the Warrant by the Investor, the purchase of and payment for the Securities
and the performance of all of the Investor's obligations hereunder and under the
Note and the Warrant have been taken or will be taken prior to the Closing.
This Agreement, the Note and the Warrant, when executed and delivered by the
Investor, shall constitute valid and binding obligations of the Investor,
enforceable in accordance with their terms, subject to laws of general
application relating to bankruptcy, insolvency and the relief of debtors and
rules of law governing specific performance, injunctive relief or other
equitable remedies.

     3.7  TAX LIABILITY. It has reviewed with its own tax advisors the tax
consequences of the transactions contemplated by this Agreement. It has relied
solely on such advisors and not on any statements or representations of the
Company or any of the Company's agents with respect to such tax consequences.
It understands that it, and not the Company, shall be responsible for its own
tax liability that may arise as a result of the transactions contemplated by
this Agreement.

4.   COVENANTS OF THE COMPANY.

     From and after the Closing Date and continuing so long as any Note remains
outstanding:

     4.1  CORPORATE EXISTENCE, ETC. The Company will preserve and keep in force
and effect its existence and such licenses and permits which, in its reasonable
opinion, are necessary and material to the proper conduct of its business.

                                       6

<PAGE>   7
     4.2  INSURANCE. The Company will maintain insurance coverage by financially
sound and reputable insurers in such forms and amounts and against such risks as
are customary for corporations of established reputation engaged in the same or
a similar business and owning and operating similar properties in similar
locations.

     4.3  SECURED DEBT. The Company will not, without the prior written consent
of the holders of Notes representing at least 51% of aggregate principal amount
then outstanding under all of the Notes, incur any secured indebtedness in
excess of, individually or in the aggregate, $1,000,000.

     4.4  TAXES, CLAIMS FOR LABOR AND MATERIALS, COMPLIANCE WITH LAWS. The
Company will promptly pay and discharge all lawful taxes, assessments and
governmental charges or levies imposed upon the Company or upon or in respect of
all or any part of the property or business of the Company, all trade accounts
payable in accordance with usual and customary business terms, and all claims
for work, labor or materials, which if unpaid might become a lien or charge upon
any property of the Company, provided that the Company shall not be required to
pay any such tax, assessment, charge, levy, account payable or claim if the
validity, applicability or amount thereof is being contested in good faith by
appropriate actions or proceedings which will prevent the forfeiture or sale of
any property of the Company or any material interference with the use thereof by
the Company.

     4.5  MAINTENANCE, ETC. The Company will maintain, preserve and keep its
properties which are used or useful in the conduct of its business (whether
owned in fee or a leasehold interest) in good repair and working order (subject
to normal wear and tear) and from time to time will make all necessary repairs,
replacements, renewals and additions so that at all times the efficiency thereof
shall be maintained.

     4.6  CONSOLIDATIONS, MERGERS AND SALES OF ASSETS. The Company shall not
consolidate with or merge into any other corporation or sell or otherwise
transfer its assets substantially as an entirety to any person, unless:

          (a) the corporation formed by such consolidation or into which the
Company is merged or the person which acquires by transfer the assets of the
Company substantially as an entirety shall be a corporation organized and
existing under the laws of the United States of America or any State thereof or
the District of Columbia, and shall expressly and unconditionally assume, by an
instrument in writing, the due and punctual payment of the principal of and
interest under the Notes and the due and punctual performance or observance of
every covenant of this Agreement, the Notes and the Warrants on the part of the
Company to be performed or observed; and

          (b) immediately after giving effect to such transaction, no Event of
Default (as defined in the Notes) shall have occurred and be continuing.

     Upon any consolidation or merger, or any transfer by the Company of its
assets substantially as an entirety to any person, in accordance with this
Section 4.6, the successor corporation formed by such consolidation or into
which the Company is merged or to which such

                                       7
<PAGE>   8
transfer is made shall succeed to, and be substituted for, and may exercise
every right and power of, the Company under this Agreement with the same effect
as if such successor corporation had been named as the Company herein.

     4.7  RESERVATION OF SHARES. The Company shall at all times reserve and
keep available out of its authorized but unissued shares of Common Stock such
number of said shares as shall from time to time be sufficient to effect the
exercise of the Warrants. In addition, the Company shall at all times reserve
and keep available out of its authorized but unissued shares of Common Stock
such number of said shares as shall from time to time be sufficient to convert
the Notes into Common Stock in accordance with the provisions thereof, assuming
an initial conversion value of $1.25 per share. In the event the Company
effects a Series D Offering (as defined in the Notes), the Company shall at all
times reserve and keep available out of its authorized but unissued shares of
Series D Preferred Stock such number of said shares as shall from time to time
be sufficient to convert the Notes into Series D Preferred Stock in accordance
with the provisions thereof.

     4.8  SECURITIES COMPLIANCE. As soon as possible on or after the Closing
Date, and in no event later than 15 days following the Closing Date, the
Company shall cause to be prepared and filed with the Securities and Exchange
Commission, the Arizona Corporation Commission and such other authority as
applicable, a Form D related to the issuance of the Note and Warrant.

5.   THE INVESTOR'S CONDITIONS TO CLOSING. The obligation of the Investors to
purchase the Notes and the Warrants at the Closing is subject to the
fulfillment on or prior to the Closing Date of each of the following conditions:

     5.1  REPRESENTATIONS AND WARRANTIES. The representations and warranties
made by the Company in Section 2 hereof shall be true and correct in all
material respects when made, and shall be true and correct in all material
respects on the Closing Date with the same force and effect as if they had been
made on and as of the Closing Date.

     5.2  PERFORMANCE. All covenants, agreements and conditions contained in
this Agreement to be performed or complied with by the Company on or prior to
the Closing Date shall have been performed or complied with in all respects.

     5.3  LEGAL INVESTMENT. At the time of the Closing, the purchase of the
Notes and the Warrants hereunder shall be legally permitted by all laws and
regulations to which the Investors and the Company are subject.

     5.4  CONDUCT OF BUSINESS; NO MATERIAL ADVERSE CHANGE. During the period
from the date hereof to the Closing, (i) the business of the Company shall have
been conducted only in, and the Company shall not have taken any action except
in, the ordinary course of business and in a manner consistent with past
practice; and (ii) no material adverse change shall have occurred in the
condition (financial or otherwise), properties, assets, liabilities, business or
operations of the Company.

     5.5  PROCEEDINGS AND DOCUMENTS. All corporate and other proceedings in
connection with the transactions contemplated hereby and all documents and
instruments incident to such

                                       8

<PAGE>   9
transactions shall be reasonably satisfactory in form and substance to the
Investors and their counsel.

     5.6 QUALIFICATION. All authorizations, approvals or permits of any
governmental authority or regulatory body that are required in connection with
the lawful issuance and sale of the Securities on the Closing Date shall have
been duly obtained and shall be effective on and as of the Closing.

     5.7 SECRETARY'S CERTIFICATE. The Investors shall have received from the
Company's Secretary a Certificate having attached thereto (i) the Company's
Articles of Incorporation and Bylaws as in effect at the time of the Closing,
(ii) resolutions of the Board of Directors and, to the extent required, the
stockholders authorizing the transactions contemplated hereby and (iii) good
standing certificates with respect to the Company from the Secretaries of State
of Nevada and Arizona, each dated as of a recent date.

     5.8 OFFICERS CERTIFICATE. The Investors shall have received a certificate
executed by the Chief Executive Officer and Chief Financial Officer dated as of
the Closing Date stating that the Closing Date stating that the representations
and warranties of the Company set forth in Section 2 hereof are true and correct
as of the date when made and as of the Closing Date and that the Company has
performed, satisfied and complied with and shall continue to perform, satisfy
and comply with all covenants, agreements and conditions as required to be
performed by it as a condition to the Closing as may be set forth in this
Agreement, the Note or Warrant.

     5.9 OPINION OF COUNSEL. The Investors shall have received an opinion of
counsel from Bryan Cave LLP, counsel to the Company, dated as of the Closing
Date, in substantially the form of Exhibit D hereto.

6. THE COMPANY'S CONDITIONS TO CLOSING. The Company's obligation to sell the
Notes and the Warrants at the Closing is subject to the fulfillment to its
satisfaction on or prior to the Closing Date of each of the following
conditions:

     6.1 REPRESENTATIONS AND WARRANTIES. The representations and warranties made
by the Investors in Section 3 hereof shall be true and correct in all material
respects when made and shall be true and correct in all material respects on the
Closing Date with the same force and effect as if they had been made on and as
of the Closing Date.

     6.2 PERFORMANCE. All covenants, agreements and conditions contained in this
Agreement to be performed or complied with by the Investors on or prior to the
Closing Date shall have been performed or complied with in all respects.

     6.3 LEGAL INVESTMENT. At the time of the Closing, the purchase of the Notes
and the Warrants shall be legally permitted by all laws and regulations to which
each Investors and the Company are subject.

7. REGISTRATION RIGHTS. At such time, if any, as the Notes are converted into
the Shares, the holders of the Notes shall enter into the Company's Shareholder
Rights Agreement dated as of May 29, 1998, or an amendment thereto, on the same
basis, and shall receive the

                                       9

<PAGE>   10
same rights and be subject to the same duties thereunder, as each other holder
of the Company's Series D Preferred Stock.

8.   TERMINATION.

     8.1  This Agreement may be terminated at any time prior to the Closing:

          (a)  by mutual written consent duly authorized by the Board of
Directors of the Company and the Investors;

          (b)  by the Investors or the Company if the Closing shall not have
occurred on or before October 31, 1999;

          (c)  by the Investors if the representations and warranties of the
Company shall not be true and correct in all material respects at and as of the
date of termination by the Investors, except for changes permitted or
contemplated by this Agreement, or if the Company fails to comply in any
material respect with any of its covenants or agreements contained herein; or

          (d)  by the Company if the representations and warranties of the
Investors shall not be true and correct in all material respects at and as of
the date of termination by the Company, except for changes permitted or
contemplated by this Agreement, or if the Investors fail to comply in any
material respect with any of their covenants or agreements contained herein.

     8.2  EFFECT OF TERMINATION.  In the event of the termination of this
Agreement pursuant to Section 8.1 hereof, notice thereof shall be promptly given
by the terminating party to the other party and thereafter this Agreement shall
forthwith become void and have no effect, without any liability on the part of
any party or their respective directors, officers or shareholders, except that
noting in this Section 8.2 shall relieve any party to this Agreement from
liability for breach of this Agreement or any misrepresentation hereof.

9.   MISCELLANEOUS.

     9.1  GOVERNING LAW AND SUBMISSION TO JURISDICTION.  The rights and
obligations of the parties hereto shall be construed and enforced in accordance
with and governed by the internal laws (and not the conflict of laws
principles) of the State of Arizona. Any action or proceeding arising out of,
relating to or concerning this Agreement, including, without limitation, any
claim of breach of contract, shall be filed in the State and Federal courts
located in Maricopa County, Arizona, which courts shall have exclusive
jurisdiction over the parties hereto and be the exclusive venue for all such
actions or proceedings.

     9.2  ENTIRE AGREEMENT; AMENDMENT.  This Agreement, including the exhibits
hereto, constitutes the full and entire understanding and agreement among the
parties with regard to the subjects hereof and thereof, and no party shall be
liable or bound to any other party in any manner by any warranties,
representations or covenants except as specifically set forth herein or
therein. Except as expressly provided herein, neither this Agreement nor any
term hereof may be

                                       10
<PAGE>   11
amended, waived, discharged or terminated other than by a written instrument
signed by the party against whom enforcement of any such amendment, waiver,
discharge or termination is sought.

     9.3  NOTICES, ETC. All notices and other communications required or
permitted hereunder shall be in writing and shall be mailed by registered or
certified mail, postage prepaid, or otherwise delivered by facsimile
transmission, by hand or by messenger, addressed:

          (a)   if to an Investor, at such Investor's address as set forth in
Exhibit A or at such other address as such Investor shall have furnished to the
Company.

          (b)  if to the Company, to:

               Quality Care Solutions, Inc.
               5030 East Sunrise Drive
               Phoenix, Arizona 85044
               Attn: Gregory S. Anderson
               Fax: (602) 940-1388

or at such other address as the Company shall have furnished to the Investors,
with a copy to:

               Bryan Cave LLP
               Two North Central Avenue, Suite 2200
               Phoenix, Arizona 85004
               Attn: Joseph P. Richardson, Esq.
               Fax: (602) 364-7070

     Each such notice or other communication shall for all purposes of this
Agreement be treated as effective or having been given when received if
delivered personally, if sent by facsimile, the first business day after the
date of confirmation that the facsimile has been successfully transmitted to
the facsimile number for the party notified, or, if sent by mail, at the
earlier of its receipt or 72 hours after the same has been deposited in a
regularly maintained receptacle for the deposit of the United States mail,
addressed and mailed as aforesaid.

     9.4  DELAYS OR OMISSIONS. Except as expressly provided herein, no delay or
omission to exercise any right, power or remedy accruing to any party, upon any
breach or default of another party under this Agreement, shall impair any such
right, power or remedy of such party nor shall it be construed to be a waiver
of any such breach or default, or an acquiescence therein, or of or in any
similar breach or default thereafter occurring; nor shall any waiver of any
single breach or default be deemed a waiver of any other breach or default
theretofore or thereafter occurring. Any waiver, permit, consent or approval of
any kind or character on the part of any party of any breach or default under
this Agreement, or any waiver on the part of any party of any provisions or
conditions of this Agreement, must be in writing and shall be effective only to
the extent specifically set forth in such writing. All remedies, either under
this Agreement or by law or otherwise afforded to any party, shall be
cumulative and not alternative.

                                       11

<PAGE>   12
     9.5  EXPENSES.  Each party shall bear its own expenses incurred on its
behalf with respect to this Agreement and the transactions contemplated hereby.

     9.6  COUNTERPARTS.  This Agreement may be executed in any number of
counterparts, each of which shall be an original, and all of which together
shall constitute one instrument.

     9.7  SEVERABILITY.  In the event that any provision of this Agreement
becomes or is declared by a court of competent jurisdiction to be illegal,
unenforceable or void, this Agreement shall continue in full force and effect
without said provision, which shall be replaced with an enforceable provision
closest in intent and economic effect as the severed provision, provided that no
such severability shall be effective if it materially changes the economic
benefit of this Agreement to any party.

     9.8  TITLES AND SUBTITLES.  The titles and subtitles used in this Agreement
are used for convenience only and are not to be considered in construing or
interpreting this Agreement.

     9.9  SUCCESSORS AND ASSIGNS.  This Agreement shall be binding upon the
Company and its successors and assigns and shall inure to the benefit of the
Investor and to the benefit of their respective successors and assigns,
including each successive holder or holders of the Notes and Warrants.

     IN WITNESS WHEREOF, the parties have executed this Agreement as of the
date first written above.

                                        QUALITY CARE SOLUTIONS, INC.

                                        By: /s/ Robert F. Theilmann
                                            ------------------------------
                                        Name:  Robert F. Theilmann
                                        Title: CFO

                                        INVESTORS:

                                        AZTORE HOLDINGS, INC.

                                        By: /s/ Michael S. Williams
                                            ------------------------------
                                        Name:  Michael S. Williams
                                        Title: Pres.

                                       12

<PAGE>   13
                                   EXHIBIT A

                             SCHEDULE OF INVESTORS

<TABLE>
<CAPTION>
Name, Address and
Fax No. of Investor           Principal Amount of Notes     Number of Warrants       Purchase Price
-------------------------     -------------------------     ------------------       --------------
<S>                           <C>                           <C>                      <C>
Aztore Holdings, Inc.                   $900,000                 450,000                 $900,000
3710 E. Kent Dr.
Phoenix, AZ 85044
Fax No. (480) 759-9401

With a copy to:

Lewis and Roca LLP
40 North Central Avenue
Phoenix, Arizona 95004
Attn: Thomas J. Morgan,
Esq.
Fax No. (602) 262-5747
</TABLE>

                                       13
<PAGE>   14
                                                                [EXECUTION COPY]

     THESE SECURITIES (INCLUDING ANY SHARES OF STOCK INTO WHICH THIS NOTE MAY BE
CONVERTED) HAVE NOT BEEN REGISTERED OR QUALIFIED UNDER THE SECURITIES ACT OF
1933, AS AMENDED, OR ANY APPLICABLE STATE SECURITIES LAWS. THEY MAY NOT BE SOLD,
OFFERED FOR SALE, PLEDGED OR HYPOTHECATED IN THE ABSENCE OF A REGISTRATION
STATEMENT IN EFFECT WITH RESPECT TO THE SECURITIES UNDER SUCH ACT AND APPLICABLE
LAWS OR SOME OTHER EXEMPTION FROM THE REGISTRATION OR QUALIFICATION REQUIREMENTS
OF SUCH ACT AND APPLICABLE LAWS OR AN OPINION OF COUNSEL SATISFACTORY TO THE
COMPANY THAT SUCH REGISTRATION IS NOT REQUIRED.

                          QUALITY CARE SOLUTIONS, INC.
                                CONVERTIBLE NOTE

$900,000                                                        Phoenix, Arizona
                                                                October 29, 1999

     QUALITY CARE SOLUTIONS, INC., a Nevada corporation (the "Company"), the
principal office of which is located at 5030 East Sunrise Drive, Phoenix,
Arizona 85044, for value received hereby promises to pay to Aztore Holdings,
Inc. ("Payee"), the principal office of which is located at 3710 East Kent
Drive, Phoenix, Arizona 85044 or its registered assigns, the sum of up to Nine
Hundred Thousand Dollars ($900,000), or such lesser amount as shall then equal
the outstanding principal amount hereof and any unpaid accrued interest hereon,
as set forth below.

     The following is a statement of the rights of Payee and the conditions to
which this Note is subject, and to which Payee, by the acceptance of this Note,
agrees:

     1.   PAYMENTS.

          (a) Interest. Interest shall accrue on the outstanding principal
amount of this Note at the rate of ten percent (10%) per annum and shall be
payable semi-annually in arrears commencing on March 31, 2000, and payable on
each September 30 and March 31 thereafter until all outstanding principal and
interest on this Note shall have been paid in full.

          (b) Principal. All outstanding principal and accrued and unpaid
interest under this Note shall be due and payable in full on July 1, 2004,
unless earlier accelerated pursuant to Section 3 hereof or converted pursuant to
Section 4 hereof.

          (c) Prepayments. Upon 30 days' prior written notice to Payee, the
Company may at any time prepay without penalty, in whole or in part, the
principal sum of this Note, plus any unpaid accrued interest thereon to the date
of payment.

<PAGE>   15
     2.   ADVANCES

          (a)  Notice of Drawdown. Subject to the provisions of this Note,
Payee will advance and the Company will accept advances (the "Advances") of the
principal amount of this Note within 10 business days after the Company's
submission to Payee of a Notice of Drawdown in the form and content of Exhibit A
attached hereto. The amount of each Advance must equal or exceed $200,000,
provided that the aggregate amount of all Advances hereunder shall not exceed
the maximum principal amount hereof, as set forth above.

          (b)  Conditions to Advances. Payee's obligation to make Advances shall
be conditioned upon the following:

               (i)   No Event of Default (as that term is defined below) shall
have occurred and be continuing under this Note;

               (ii)  Payee shall have received the Company's Notice of Drawdown;
and

               (iii) The Company's representations and warranties contained in
the Note Purchase Agreement (as defined below) shall be true and correct in all
material respects on the date of the Advance.

     3.   EVENTS OF DEFAULT. If any of the events specified in this Section 3
shall occur (each, an "Event of Default"), Payee may, so long as such condition
exists, declare the entire principal and unpaid accrued interest hereon
immediately due and payable, by notice in writing to the Company:

          (i)   The Company shall default in the payment of the principal and
accrued and unpaid interest of this Note when due and payable, if such default
is not cured by the Company within 10 days after the Payee has given the Company
written notice of such default;

          (ii)  The Company shall commit a material breach or default of any of
its other obligations under this Note or the Note Purchase Agreement, where such
breach or default is not cured within 30 days after notice thereof is given to
the Company by Payee;

          (iii) The institution by the Company of proceedings to be adjudicated
as bankrupt or insolvent, or the consent by it to institution of bankruptcy or
insolvency proceedings against it or the filing by it of a petition or answer or
consent seeking reorganization or release under the federal Bankruptcy Act, or
any other applicable federal or state law, or the consent by it to the filing of
any such petition or the appointment of a receiver, liquidator, assignee,
trustee or other similar official of the Company, or of any substantial part of
its property, or the making by it of an assignment for the benefit of creditors,
or the taking of corporate action by the Company in furtherance of any such
action; or

          (iv)  If, within 60 days after the commencement of an action against
the Company (and service of process in connection therewith on the Company)
seeking any bankruptcy, insolvency, reorganization, liquidation, dissolution or
similar relief under any

                                       2
<PAGE>   16
present or future statute, law or regulation, such action shall not have been
resolved in favor of the Company or all orders or proceedings thereunder
affecting the operations or the business of the Company stayed, or if the stay
of any such order or proceeding shall thereafter be set aside, or if, within 60
days after the appointment without the consent or acquiescence of the Company of
any trustee, receiver or liquidator of the Company or of all or any substantial
part of the properties of the Company, such appointment shall not have been
vacated.

     4.  CONVERSION

         (a)  Conversion upon an IPO or Change of Control. The entire principal
amount of this Note shall be automatically converted into fully paid and
nonassessable shares of Common Stock of the Company (the "Common Stock") upon
the closing of a firmly underwritten public offering (an "IPO") pursuant to a
registration statement filed by the Company under the Securities Act of 1933, as
amended, with aggregate gross proceeds in excess of $10,000,000. The number of
shares of Common Stock into which this Notes shall be converted shall be
determined by dividing the aggregate principal amount hereof by the price at
which a share of Common Stock is first offered and sold to the public pursuant
to the IPO registration statement, net of underwriting commissions and
discounts.

         (b)  Conversion upon a Change of Control. The entire principal amount
of this Note may be converted, at Payee's sole election, into fully paid and
nonassessable shares of Common Stock upon any consolidation or merger of the
Company with or into any other corporation or other entity or person, or any
other corporate reorganization in which the Company shall not be the continuing
or surviving entity of such consolidation, merger or reorganization, or any
transaction or series of related transactions by the Company in which in excess
of 50% of the Company's voting power is transferred, or a sale of all or
substantially all of the assets of the Company (any of the foregoing, a "Change
of Control"). The number of shares of Common Stock into which this Note may be
converted shall be determined by dividing the aggregate principal amount hereof
by the fair market value of a share of Common Stock as of such date, as
reasonably determined by the Company's Board of Directors, provided that to the
extent the Common Stock shall be converted into securities of another entity,
cash or other property upon the consummation of such Change of Control, Payee
shall receive such securities, cash or other property pursuant to such Change of
Control as if this Note was converted into Common Stock as provided above
immediately prior to the consummation of such Change of Control.

         (c)  Conversion upon Series D Closing. The entire principal amount of
this Note may be converted, at Payee's sole election, into fully paid and
nonassessable shares of Series D Preferred Stock of the Company (the "Series D
Preferred Stock") upon the consummation of the sale by the Company of shares of
Series D Preferred Stock pursuant to an offering in which the Company receives
at least $1 million in gross proceeds (which amount shall be in excess of the
principal amount of this Note converted hereunder) (a "Series D Offering"). The
number of shares of Series D Preferred Stock into which this Note may be
converted shall be determined by dividing the aggregate principal amount hereof
by the purchase price per share of Series D Preferred Stock pursuant to the
Series D Offering, net of placement commissions, finders' fees and other,
similar costs.

                                       3

<PAGE>   17
         (d)  Notice of Conversion. If this Note is converted as provided
herein, written notice shall be delivered to Payee at the address last shown on
the records of the Company for Payee or given by Payee to the Company for the
purpose of notice or, if no such address appears or is given, at the place
where the principal executive office of the Company is located, notifying Payee
of the conversion to be effected, the principal amount of the Note to be
converted, the number of shares of Common Stock or Series D Preferred Stock, as
the case may be, issuable thereby, the date on which such conversion will occur
and calling upon Payee to surrender to the Company, in the manner and at the
place designated, the Note.

         (e)  Mechanics and Effect of Conversion. In lieu of the Company issuing
any fractional shares to Payee upon the conversion of this Note, the Company
shall pay to Payee the amount of outstanding principal that is not so converted.
In the event of any conversion of this Note, Payee shall thereafter be treated
for all purposes as the record owner of the shares of Common Stock or Series D
Preferred Stock, as the case may be, issuable thereby. Upon conversion of this
Note and the payment of any amounts due and owing with respect to unpaid accrued
interest or fractional shares, the Company shall be forever released from all
its obligations and liabilities under this Note.

     5.  ACCELERATION UPON A CHANGE OF CONTROL. Upon the occurrence of a Change
of Control in connection with which Payee elects not to convert the principal
amount of this Note pursuant to Section 4(b) hereof, Payee may, by written
notice to the Company, declare the entire principal amount hereof and accrued
unpaid interest hereon immediately due and payable.

     6.  NOTE PURCHASE AGREEMENT. This Note is one of several Notes issued
pursuant to that certain Convertible Note Purchase Agreement dated as of October
--, 1999, to which the Company and Payee are parties (the "Note Purchase
Agreement"). The Company and Payee are subject to, and entitled to the benefits
of, the representations, warranties, covenants, conditions and agreements set
forth in the Note Purchase Agreement.

     7.  USE OF PROCEEDS. The Company will use Advances hereunder for general
working capital purposes, including the payment of IPO-related expenses.

     8.  SECURITY. This Note is an unsecured general obligation of the Company.

     9.  TRANSFER AND ASSIGNMENT. Payee may transfer, sell or otherwise dispose
of this Note in any manner permitted by applicable securities and other laws;
provided, however, that the Company shall not be obligated to recognize any such
transfer unless it has received notice thereof from the transferor (or such
transferor's representative). Subject to the preceding sentence, the rights and
obligations of the Company and Payee shall be binding upon and benefit the
successors, assigns, heirs, administrators, representatives and transferees of
the parties.

     10. WAIVER AND AMENDMENT. The provisions of this Note may be amended,
waived or modified only upon the written consent of the Company and Payee. No
single or partial exercise of any power hereunder shall preclude other or
further exercise thereof or the exercise of any other power. No delay or
omission on the part of the holder hereof in exercising any right hereunder
shall operate as a waiver of such right or of any other right under this Note.
No acceptance of a past due installment or indulgence granted from time to time
shall be construed

                                       4

<PAGE>   18
to be a waiver of the right to insist upon prompt payment thereafter or to
preclude the exercise of any other rights which Payee may have.

     11.  REMEDIES.  Upon the occurrence and during the continuance of any
Event of Default, Payee may, at its option, exercise any and all rights and
remedies available to it at law or in equity.

     12.  NOTICES.  Any notice, request or other communication required or
permitted hereunder shall be in writing and shall be deemed to have been duly
given if personally delivered or if telegraphed or mailed by registered or
certified mail, postage prepaid, at the respective addresses of the parties as
set forth herein. Any party hereto may by notice so given change its address
for future notice hereunder. Notice shall conclusively be deemed to have been
given when personally delivered or when deposited in the mail or telegraphed in
the manner set forth above and shall be deemed to have been received when
delivered.

     13.  NO SHAREHOLDER RIGHTS.  Nothing contained in this Note shall be
construed as conferring upon Payee or any other person the right to vote or
consent to or to receive notice as a shareholder in respect of meetings of
shareholders for the election of directors of the Company or otherwise.

     14.  GOVERNING LAW AND SUBMISSION TO JURISDICTION. The rights and
obligations of the parties hereto shall be construed and enforced in accordance
with and governed by the internal laws (and not the conflict of laws
principles) of the State of Arizona. Any action or proceeding arising out of,
relating to or concerning this Note, including, without limitation, any claim
of breach of contract, shall be filed in the State and Federal courts located
in Maricopa County, Arizona, which courts shall have exclusive jurisdiction
over the parties hereto and be the exclusive venue for all such actions or
proceedings.

     15.  HEADINGS; REFERENCES. All headings used herein are used for
convenience only and shall not be used to construe or interpret this Note.
Except where otherwise indicated, all references herein to Sections refer to
the Sections hereof.

     IN WITNESS WHEREOF, the Company has caused this Note to be issued as of
the date first set forth above.

                                             QUALITY CARE SOLUTIONS, INC.

                                             By: /s/ Robert F. Theilmann
                                                --------------------------------

                                             Name: Robert F. Theilmann
                                                  ------------------------------

                                             Title: CFO
                                                   -----------------------------

                                       5
<PAGE>   19

                                   EXHIBIT A

                              NOTICE OF DRAWNDOWN

                                     NO. 1

                                October 29, 1999

VIA FACSIMILE

Aztore Holdings, Inc.
3710 E. Kent Dr.
Phoenix, AZ 85044
Fax No. (480)959-9401

                    Re: Notice of Drawdown

Dear              :

     Pursuant to the terms of that certain Convertible Note (the ("Note") dated
as of October 29, 1999 by Quality Care Solutions, Inc., as Maker, in favor of
you, as Payee, the undersigned hereby requests an advance in the amount of
$250,000 pursuant to Section 2 of the Note. The undersigned hereby represents
and warrants that the conditions to such advance, as set forth in the Note,
have been satisfied.

                                        Very truly yours,

                                        QUALITY CARE SOLUTIONS, INC.

                                        By: /s/ Robert F. Theilmann
                                        ---------------------------------------
                                            Robert F. Theilmann, Chief Financial
                                            Officer

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