Document:

<PAGE>

                                                                    EXHIBIT 10.7

                                  [LETTERHEAD]

MARCH 26, 1998

Mr. Anil Uberoi
44987 Naragnsett Court
Fremont, CA  94539

Dear Anil:

         I am pleased to offer you a position with XaCCT Technologies, Inc., a
Delaware corporation (the "Company"), as its Vice President of Marketing,
commencing on April 1, 1998. You shall report to the Company's President, and
shall assume and discharge such responsibilities as are commensurate with such
position and as the Company's President may direct. During the term of your
employment you shall devote your full time, skill and attention to your duties
and responsibilities and shall perform them faithfully, diligently and
competently. In addition, you shall comply with the policies, procedures and
practices of the Company as in effect from time to time.

         You will receive a monthly salary of $12,500 a month, which will be
paid semi-monthly in accordance with the Company's normal payroll procedures. As
a Company employee, you will also be eligible to receive certain employee
benefits including participation in the Company's health insurance plan and 401K
program when the Company establishes such program and plan and to the extent
of your eligibility under their terms. You should note that the Company might
modify salaries and benefits from time to time as it deems necessary.

         We will recommend to the Board of Directors of XaCCT Technologies,
LTD., an Israeli corporation ("XaCCT Ltd.") that, at its next board meeting you
be granted an incentive stock option entitling you to purchase up to the
equivalent of 2% of common stock of XaCCT Ltd. At the then current fair market
value as determined by XaCCT Ltd's Board at that meeting. Such options shall be
subject to the term and conditions of XaCCT Ltd's stock option plan and stock
options agreement, including vesting requirement. In the event that the Company
merges into or is acquired by another party and is not the surviving company,
then to the extent permitted by XaCCT Ltd's stock option plan and stock option
agreement and applicable law, all of the unvested portion of stock options
granted pursuant to this offer will immediately vest.

                                                                          Page 1
<PAGE>

You shall be eligible to receive incentive bonus based on special individual
objectives in 1998 and 1999. Your manager will set these objectives. Your
incentive bonus for 1998 shall be an incentive stock option entitling you to
purchase up to 0.25% of common stocks of XaCCT Ltd. at the then current fair
market value as determined by XaCCT Ltd's Board in its first meeting after
January 1, 1999. Your incentive bonus for 1999 shall be an incentive stock
option entitling you to purchase up to 0.25% of common stocks of XaCCT Ltd. at
the then current fair market value as determined by XaCCT Ltd's Board in its
first meeting after January 1, 2000.

         You should be aware that your employment with the Company is for no
specified period and constitutes at will employment. As a result, you are free
to resign at any time, for any reason or for no reason. Similarly, the Company
is free to conclude its employment relationship with you at any time, with or
without cause, and with or without notice.

         In the event that the Company terminates your employment relationships
without cause, you will continue to receive your monthly salary and benefits for
three months following the effective date of termination.

         For purposes of federal immigration law, you will be required to
provide to the Company documentary evidence of your identity and eligibility for
employment in the United States. Such documentation must be provided to us
within three (3) business days of your date of hire, or our employment
relationship with you may be terminated.

         You agree that, during the term of your employment with the Company,
you will not actively engage in any other employment, occupation, consulting or
other business directly or indirectly related to the business in which the
Company or XaCCT Ltd. is now involved or becomes involved during the term of
your employment, nor will you engage in any other activities that conflict with
your obligations to the Company or XaCCT Ltd.

         As a Company employee, you will be expected to abide by the Company's
and XaCCT LTD's rules and regulations. You will be expected to sign and comply
with an Employment, Confidential Information, and Invention Assignment Agreement
which requires, among other provisions, the assignment of patent rights to any
invention made during your employment at the Company and non-disclosure of
proprietary information. Normal working hours are from 8:30 a.m. to 6:00 p.m.,
Monday through Friday. Of course as an exempt employee you will be expected to
work additional hours as required by your assignments.

                                                                          Page 2
<PAGE>

         To indicate your acceptance of the Company's offer, please sign and
date this letter in the space provided below and return it to me. A duplicate
original is enclosed for your records. This letter, along with the agreement
relating to proprietary rights between you and the Company, sets forth the terms
of your employment with the Company and supersedes any prior representations or
agreements, whether written or oral. This letter may not be modified or amended
except by a written agreement, signed by an officer of the Company and by you.

         We look forward to working with you.

                                            Sincerely,

                                            XaCCT Technologies, Inc.

                                            /s/ ERIC GRIES

                                            Eric Gries
                                            President and CEO

ACCEPTED AND AGREED TO
This 27 day of MARCH, 1998
     --        -----    --

/s/ ANIL UBEROI
---------------------------
Anil Uberoi

Enclosures:  Duplicate Original Letter Employment, Confidential Information, and
             Invention Assignment Agreement

                                                                          Page 3
<PAGE>

                                       21

                                    EXHIBIT B

                      TERMS OF THE INCENTIVE STOCK OPTIONS

-------------------------------------------------------------------------------
1.     Name of the Optionee:                    Anil Uberoi
--------------------------------------------------------------------------------
2.     Number of ISOs granted:                  4,000
--------------------------------------------------------------------------------
3.     Exercise Price:                          $2.45
--------------------------------------------------------------------------------
4.     Expiration Date:                         8 years from the Date of Grant
--------------------------------------------------------------------------------
5.     Date of Grant:                           12-August-1999
--------------------------------------------------------------------------------
6.     Vesting schedule                         4 years
--------------------------------------------------------------------------------

      --------------------------------------------------------------------------
      % OF THE OPTIONS        VESTING DATE
      --------------------------------------------------------------------------
                              Every 3 months, starting from the 3rd month from
       6.25                   the Date of Grant (unless stated differently in
                              employee's contract)
      --------------------------------------------------------------------------

Optionee Signature         /s/ ANIL UBEROI                    9/2/99
                  --------------------------------------------------

                                       21<PAGE>
                                                                    EXHIBIT 10.8
                                  [LETTERHEAD]

AUGUST 15, 1998

Mr. Eran Wagner

HAND DELIVERY

Dear Eran:

         I am pleased to offer you a position with XaCCT Technologies, Inc., a
Delaware corporation (the "Company"), as its Executive Vice President --
Technical Services, commencing on September 25, 1998. You shall report to the
Company's President, and shall assume and discharge such responsibilities as are
commensurate with such position and as the Company's President may direct.
During the term of your employment you shall devote your full time, skill and
attention to your duties and responsibilities and shall perform them faithfully,
diligently and competently. In addition, you shall comply with the policies,
procedures and practices of the Company as in effect from time to time.

         You will receive a monthly salary of $12,000 a month, which will be
paid semi-monthly in accordance with the Company's normal payroll procedures. As
a Company employee, you will also be eligible to receive certain employee
benefits including participation in the Company's 401K program and health
insurance plan when the Company establishes such program and plan and to the
extent of your eligibility under their terms. You should note that the Company
might modify salaries and benefits from time to time as it deems necessary.

         You should be aware that your employment with the Company is for no
specified period and constitutes at will employment. As a result, you are free
to resign at any time, for any reason or for no reason. Similarly, the Company
is free to conclude its employment relationship with you at any time, with or
without cause, and with or without notice.

         In the event your employment is terminated by the Company without
cause, the Company will pay you severance equal to six months (6) of your base
salary (as measured as of the date of termination), less applicable taxes and
other required withholdings and any amount owed by you to the Company, which
severance shall be paid quarterly in equal installments with the first
installment paid on the date of termination. Severance pay shall be considered
wages for the purpose of any bankruptcy or involuntary proceedings.

                                                                          Page 1
<PAGE>

         In the event your employment hereunder shall be terminated by the
Company with cause, this agreement shall be terminate as of the date of such
termination of employment with respect to (i), (ii), (iii) and (iv) below and
upon forty five (45) days notice with respect to (v) below, and you will not
have no right to any severance or other compensation or benefits other than that
which is accrued and owing as of the date of termination. The term "Cause" is
defined as any one or more of the following occurrences:

               (i)  Your conviction by, or entry of a plea of guilty of nolo
                    contendere in, a court of competent and final jurisdiction
                    for any crime which constitute a felony in the jurisdiction
                    involved, which felony materially injured the Company o any
                    of its respective affiliates; or

               (ii) Your commission of a material act of fraud or
                    misappropriation of funds, whether prior to or subsequent to
                    the date hereof, upon the Company or any of its respective
                    affiliates; or

              (iii) Gross negligence by you in the scope of your services
                    to the Company or any of its respective affiliates; or

               (iv) A willful breach by you of a material provision of this
                    agreement; or

               (v)  A willful failure by you to substantially perform your
                    duties hereunder

         For purposes of federal immigration law, you will be required to
provide to the Company documentary evidence of your identity and eligibility for
employment in the United States. Such documentation must be provided to us
within three (3) business days of your date of hire, or our employment
relationship with you may be terminated.

         You agree that, during the term of your employment with the Company,
you will not actively engage in any other employment, occupation, consulting or
other business directly or indirectly related to the business in which the
Company or XaCCT Ltd. is now involved or becomes involved during the term of
your employment, nor will you engage in any other activities that conflict with
your obligations to the Company or XaCCT Ltd.

         As a Company employee, you will be expected to abide by the Company's
and XaCCT LTD's rules and regulations. You will be expected to sign and comply
with an Employment, Confidential Information, and Invention Assignment Agreement
which requires, among other provisions, the assignment of patent rights to any
invention made during your employment at the Company and non-disclosure of
proprietary information. Normal working hours is from 8:30 a.m. to 6:00 p.m.,
Monday through Friday. Of course as an exempt employee you will be expected to
work additional hours as required by your assignments.

                                                                          Page 2
<PAGE>

         To indicate your acceptance of the Company's offer, please sign and
date this letter in the space provided below and return it to me. A duplicate
original is enclosed for your records. This letter, along with the agreement
relating to proprietary rights between you and the Company, sets forth the terms
of your employment with the Company and supersedes any prior representations or
agreements, whether written or oral. This letter may not be modified or amended
except by a written agreement, signed by an officer of the Company and by you.

         We look forward to working with you.

                                       Sincerely,

                                       XaCCT Technologies, Inc.

                                       /s/ ERIC GRIES

                                       Eric Gries
                                       President and CEO

ACCEPTED AND AGREED TO
This 20 day of AUGUST, 1998
     ---        ------   ---

/s/ ERAN WAGNER
---------------------
Eran Wagner

Enclosures:       Duplicate Original Letter
                  Employment, Confidential Information, and Invention
                  Assignment Agreement

                                                                          Page 3
<PAGE>

                    EXECUTIVE MANAGEMENT BONUS PLAN -- FY 1999

            ERAN WAGNER -- EXECUTIVE VICE PRESIDENT, TECHNICAL SERVICES

-    Combination of cash and XACCT Technologies, Ltd. stock options.

-    Executive is assigned a set of targeted KPIs. Each KPI has its assigned
     value (in percentage). Achieving them will determine the amount of the
     bonus. See below the list of your KPIs and their assigned percentage.

-    Bonus will be paid annually.

-    The vesting period for the option portion of the bonus will start on
     January 1999.

-    The bonus award will be on January 2000 and no later than February 2000.

-    The bonus will be on a sliding scale starting from 80% - 100% of attainment
     of goals.

-    Achieving more than 100% of goals will result in acceleration bonus. The
     CEO will recommend to the Compensation Committee the size of the
     accelerated portion.

     ---------------------------------------------------------------------------
     KPI                                                              PERCENTAGE
     ---------------------------------------------------------------------------
     Perform at least 10 successful(1) installations in               30%
     Major(2) NSPs
     ---------------------------------------------------------------------------
     Annual Sales - $4 Million                                        20%
     ---------------------------------------------------------------------------
     Adhere to FY 1999 departmental Budget                            20%
     ---------------------------------------------------------------------------
     Execute 2 successful beta program                                20%
     ---------------------------------------------------------------------------
     Deliver 2 training sessions per quarter                          10%
     ---------------------------------------------------------------------------

Bonus at 100% attainment:
-    Cash - $25,440
-    Options - 5,088

I have read the above information.

/s/ ERAN WAGNER                             1/15/99
-----------------------                     -------------
Eran Wagner                                 Date

-----------------------

(1) "Successful installation" is defined as an installation in which a PO has
been issued and the product is installed and running in the customer's site.

(2) "Major" is defined as a leading, national, NSP such as Sprint, Northpoint,
US West, Time Warner etc.

Source: [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00004-of-00352.parquet"}, [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00004-of-00352.parquet"}]]