UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION

                             Washington, D.C. 20549



                                    FORM 8-K

                                 CURRENT REPORT


     Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934


                        Date of Report: January 15, 2003
                        (Date of earliest event reported)


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



                      TRANSACTION SYSTEMS ARCHITECTS, INC.
             (Exact name of registrant as specified in its charter)



          Delaware                   0-25346                     47-0772104
(State or other jurisdiction       (Commission                (I.R.S. Employer
      of incorporation)            File Number)              Identification No.)


                             224 South 108th Avenue,
                              Omaha, Nebraska 68154
          (Address of principal executive offices, including zip code)


                                 (402) 334-5101
              (Registrant's telephone number, including area code)


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




Item 5. Other Events. On January 15, 2003, Transaction Systems Architects, Inc. issued a press release announcing that the NASDAQ Listing Qualifications Panel has determined to continue the listing of the Company's common stock on the NASDAQ National Market and that the delisting proceedings have been closed. The trading symbol for the Company's common stock will once again be TSAI, effective Friday, January 17, 2003. Item 7. Financial Statements and Exhibits. (c) Exhibits. 99.1 Press Release dated January 15, 2003. SIGNATURE Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. TRANSACTION SYSTEMS ARCHITECTS, INC. Date: January 15, 2003 By: /s/ Dwight G. Hanson ---------------------------------------- Dwight G. Hanson Chief Financial Officer, Treasurer and Senior Vice President

EXHIBIT INDEX Exhibit Number Description 99.1 Press Release dated January 15, 2003

                                                                    Exhibit 99.1

                                                                    News Release

TRANSACTION SYSTEMS ARCHITECTS INC
224 SOUTH 108 AVENUE
OMAHA, NEBRASKA 68154
402.334.5101
FAX 402.390.8077



For more information contact:
William J. Hoelting
Vice President, Investor Relations
402.390.8990


FOR IMMEDIATE RELEASE

      Transaction Systems Architects Announces Continued NASDAQ Listing Of Its
                                Common Stock


(OMAHA, Neb.--January 15, 2003)-- Transaction Systems Architects, Inc. (Nasdaq:
TSAIE; formerly TSAI), a leading global provider of enterprise e-payments and
e-commerce solutions, announced today that the NASDAQ Listing Qualifications
Panel has determined to continue the listing of the company's common stock on
the NASDAQ National Market and that the delisting proceedings have been closed.
Effective with the opening of business on Friday January 17, 2003, the trading
symbol for the company's common stock will once again be TSAI. This decision
follows the company's January 13, 2003 filing of its Form 10-K for fiscal 2002
and amended Form 10-Q for the fiscal quarter ended June 30, 2002.

About Transaction Systems Architects, Inc.

Transaction Systems Architects' software facilitates electronic payments by
providing consumers and companies access to their money. Its products are used
to process transactions involving credit cards, debit cards, secure electronic
commerce, mobile commerce, smart cards, secure electronic document delivery and
payment, checks, high-value money transfers, bulk payment clearing and
settlement, and enterprise e-infrastructure. Transaction Systems Architects'
solutions are used on more than 1,650 product systems in 71 countries on six
continents.

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