EXHIBIT 3.1
                          SECOND AMENDED AND RESTATED

                         CERTIFICATE OF INCORPORATION

                                      OF

                                  Viador INC.


          The undersigned, Stan X. Wang and Raja H. Venkatesh, hereby certify
that:

          ONE: They are the duly elected, qualified and acting President and
          ---
Secretary, respectively, of Viador Inc., a Delaware corporation.

          TWO: The Certificate of Incorporation of said corporation was
          ---
originally filed in the Office of the Secretary of State of the State of
Delaware on June 2, 1999 and the Amended and Restated Certificate of
Incorporation of said corporation was originally filed in such office on
October
21, 1999.

          THREE: The Amended and Restated Certificate of Incorporation of said
          -----
corporation is amended and restated to read in its entirety as follows:

                                   ARTICLE I

          The name of this corporation is Viador Inc. (the "Corporation").

                                  ARTICLE II

          The address of the Corporation's registered office in the State of
Delaware is 1013 Centre Road, City of Wilmington, County of New Castle,
Delaware
19801. The name of the Corporation's registered agent at such address is the
Corporation Service Company.

                                  ARTICLE III

          The nature of the business or purposes to be conducted or promoted is
to engage in any lawful act or activity for which corporations may be organized
under the General Corporation Law of the State of Delaware (the "GCL").

                                  ARTICLE IV

          The Corporation is authorized to issue two classes of stock to be
designated, respectively, "Common Stock" and "Preferred Stock." The total
number
of shares that the Corporation is authorized to issue is One Hundred Ten
Million
(110,000,000). One Hundred Million (100,000,000) shares shall be Common Stock,
par value $0.001 per share, and Ten Million (10,000,000) shares shall be
Preferred Stock, par value $0.001 per share.

          The Preferred Stock may be issued from time to time in one or more
series, without further stockholder approval. The Board of Directors of the
Corporation is hereby
<PAGE>

authorized to fix or alter the rights, preferences, privileges and restrictions
granted to or imposed upon each series of Preferred Stock, and the number of
shares constituting any such series and the designation thereof, or of any of
them. The rights, privileges, preferences and restrictions of any such
additional series may be subordinated to, pari passu with (including, without
                                          ----------
limitation, inclusion in provisions with respect to liquidation and acquisition
preferences, redemption and/or approval of matters by vote), or senior to any
of
those of any present or future class or series of Preferred Stock or Common
Stock. The Board of Directors is also authorized to increase or decrease the
number of shares of any series prior or subsequent to the issue of that series,
but not below the number of shares of such series then outstanding. In case the
number of shares of any series shall be so decreased, the shares constituting
such decrease shall resume the status which they had prior to the adoption of
the resolution originally fixing the number of shares of such series.

                                   ARTICLE V

          In furtherance and not in limitation of the powers conferred by
statute, the Board of Directors is expressly authorized to make, repeal, alter,
amend and rescind any or all of the Bylaws of the Corporation. In addition, the
Bylaws may be amended by the affirmative vote of holders of at least sixty-six
and two-thirds percent (66 2/3%) of the outstanding shares of voting stock of
the Corporation entitled to vote at an election of directors.

                                  ARTICLE VI

          The number of directors of the Corporation shall be determined by
resolution of the Board of Directors.

          Elections of directors need not be by written ballot unless the
Bylaws
of the Corporation shall so provide. Advance notice of stockholder nominations
for the election of directors and of any other business to be brought before
any
meeting of the stockholders shall be given in the manner provided in the Bylaws
of this Corporation.

          At each annual meeting of stockholders, directors of the Corporation
shall be elected to hold office until the expiration of the term for which they
are elected, or until their successors have been duly elected and qualified;
except that if any such election shall not be so held, such election shall take
place at a stockholders' meeting called and held in accordance with the GCL.

          The directors of the Corporation shall be divided into three (3)
classes as nearly equal in size as is practicable, hereby designated Class I,
Class II and Class III. For the purposes hereof, the initial Class I, Class II
and Class III directors shall be those directors so designated by a resolution
of the Board of Directors. At the first annual meeting of stockholders
following
the closing of the initial public offering of the Corporation's Common Stock,
the term of office of the Class I directors shall expire and Class I directors
shall be elected for a full term of three (3) years. At the second annual
meeting of stockholders following the closing of the initial public offering of
the Corporation's Common Stock, the term of office of the Class II directors
shall expire and Class II directors shall be elected for a full term of three
(3) years. At the third annual meeting of stockholders following the initial
public offering of the Corporation's Common
<PAGE>

Stock, the term of office of the Class III directors shall expire and Class III
directors shall be elected for a full term of three (3) years. At each
succeeding annual meeting of stockholders, directors shall be elected for a
full
term of three (3) years to succeed the directors of the class whose terms
expire
at such annual meeting. If the number of directors is hereafter changed, each
director then serving as such shall nevertheless continue as a director of the
Class of which he is a member until the expiration of his current term and any
newly created directorships or decrease in directorships shall be so
apportioned
among the classes as to make all classes as nearly equal in number as is
practicable.

          Vacancies occurring on the Board of Directors for any reason may be
filled by vote of a majority of the remaining members of the Board of
Directors,
even if less than a quorum, at any meeting of the Board of Directors. A person
so elected by the Board of Directors to fill a vacancy shall hold office for
the
remainder of the full term of the director for which the vacancy was created or
occurred and until such director's successor shall have been duly elected and
qualified. A director may be removed from office by the affirmative vote of the
holders of 66 2/3% of the outstanding shares of voting stock of the Corporation
entitled to vote at an election of directors, provided that such removal is for
cause.

                                  ARTICLE VII

          Stockholders of the Corporation shall take action by meetings held
pursuant to this Amended and Restated Certificate of Incorporation and the
Bylaws and shall have no right to take any action by written consent without a
meeting. Meetings of stockholders may be held within or without the State of
Delaware, as the Bylaws may provide. Special meetings of the stockholders, for
any purpose or purposes, may only be called by the Board of Directors of the
Corporation. The books of the Corporation may be kept (subject to any provision
contained in the statutes) outside the State of Delaware at such place or
places
as may be designated from time to time by the Board of Directors or in the
Bylaws of the Corporation.

                                 ARTICLE VIII

          To the fullest extent permitted by applicable law, this Corporation
is
authorized to provide indemnification of (and advancement of expenses to)
directors, officers, employees and agents (and any other persons to which
Delaware law permits this Corporation to provide indemnification) through Bylaw
provisions, agreements with such agents or other persons, vote of stockholders
or disinterested directors or otherwise, in excess of the indemnification and
advancement otherwise permitted by Section 145 of the GCL, subject only to
limits created by applicable Delaware law (statutory or non-statutory), with
respect to action for breach of duty to the Corporation, its stockholders, and
others.

          No director of the Corporation shall be personally liable to the
Corporation or any stockholder for monetary damages for breach of fiduciary
duty
as a director, except for any matter in respect of which such director shall be
liable under Section 174 of the GCL or any amendment thereto or shall be liable
by reason that, in addition to any and all other requirements for such
liability, such director (1) shall have breached the director's duty or loyalty
to the Corporation or its stockholders, (2) shall have acted in manner
involving
intentional misconduct or a knowing violation of law or, in failing to act,
shall have acted in a manner involving
<PAGE>

intentional misconduct or a knowing violation of law, or (3) shall have derived
an improper personal benefit. If the GCL is hereafter amended to authorize the
further elimination or limitation of the liability of a director, the liability
of a director of the Corporation shall be eliminated or limited to the fullest
extent permitted by the GCL, as so amended.

          Each person who was or is made a party or is threatened to be made a
party to or is in any way involved in any threatened, pending or completed
action, suit or proceeding, whether civil, criminal, administrative or
investigative (hereinafter a "proceeding"), including any appeal therefrom, by
reason of the fact that he or she, or a person of whom he or she is the legal
representative, is or was a director or officer of the Corporation or a direct
or indirect subsidiary of the Corporation, or is or was serving at the request
of the Corporation as a director or officer of another entity or enterprise, or
was a director or officer of a foreign or domestic corporation which was
predecessor corporation of the Corporation or of another entity or enterprise
at
the request of such predecessor corporation, shall be indemnified and held
harmless by the Corporation, and the Corporation shall advance all expenses
incurred by any such person in defense of any such proceeding prior to its
final
determination, to the fullest extent authorized by the GCL. In any proceeding
against the Corporation to enforce these rights, such person shall be presumed
to be entitled to indemnification and the Corporation shall have the burden of
proving that such person has not met the standards of conduct for permissible
indemnification set forth in the GCL. The rights to indemnification and
advancement of expenses conferred by this Article VIII shall be presumed to
have
been relied upon by the directors and officers of the Corporation in serving or
continuing to serve the Corporation and shall be enforceable as contract
rights.
Said rights shall not be exclusive of any other rights to which those seeking
indemnification may otherwise be entitled. The Corporation may, upon written
demand presented by a director or officer of the Corporation or of a direct or
indirect subsidiary of the Corporation, or by a person serving at the request
of
the Corporation as a director or officer of another entity or enterprise, enter
into contracts to provide such persons with specified rights to
indemnification,
which contracts may confer rights and protections to the maximum extent
permitted by the GCL, as amended and in effect from time to time.

          If a claim under this Article VIII is not paid in full by the
Corporation within sixty (60) days after a written claim has been received by
the Corporation, the claimant may at any time thereafter bring suit against the
Corporation to recover the unpaid amount of the claim and, if successful in
whole or in part, the claimant shall be entitled to be paid also the expenses
of
prosecuting such claim. It shall be a defense to any such action (other than an
action brought to enforce the right to be advanced expenses incurred in
defending any proceeding prior to its final disposition where the required
undertaking, if any, has been tendered to the Corporation ) that the claimant
has not met the standards of conduct which make it permissible under the GCL
for
the Corporation to indemnify the claimant for the amount claimed, but the
claimant shall be presumed to be entitled to indemnification and the
Corporation
shall have the burden of proving that the claimant has not met the standards of
conduct for permissible indemnification set forth in the GCL.

          If the GCL is hereafter amended to permit the Corporation to provide
broader indemnification rights than said law permitted the Corporation to
provide prior to such amendment, the indemnification rights conferred by this
Article VIII shall be broadened to the fullest extent permitted by the GCL, as
so amended.
<PAGE>

                                  ARTICLE IX

          The Corporation reserves the right to amend, alter, change or repeal
any provision contained in this Amended and Restated Certificate of
Incorporation, in the manner now or hereafter prescribed by statute, and all
rights conferred upon stockholders herein are granted subject to this
reservation. Notwithstanding the foregoing, the provisions set forth in
Articles
V, VI, VII, VIII and IX of this Amended and Restated Certificate of
Incorporation may not be repealed or amended in any respect without the
affirmative vote of holders at least 66-2/3% of the outstanding voting stock of
the Corporation entitled to vote at election of directors.

          FOUR: The foregoing amendment and restatement has been duly adopted
by
          ----
the Corporation's Board of Directors in accordance with the applicable
provisions of Sections 242 and 245 of the General Corporation Law of the State
of Delaware.

          FIFTH: The foregoing amendment and restatement was approved by the
          -----
holders of the requisite number of shares of the Corporation in accordance with
Section 228 of the General Corporation Law of the State of Delaware.

          IN WITNESS WHEREOF, the undersigned have executed this certificate on
October 29, 1999.



                                /s/ Stan X. Wang
                                -------------------------------------
                                Stan X. Wang
                                President


                                /s/ Raja H. Venkatesh
                                -------------------------------------
                                Raja H. Venkatesh
                                Secretary
<PAGE>