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: October 28, 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 7. Financial Statements and Exhibits. (c) Exhibits. Exhibit Number Description 99.1 Press Release, dated October 28, 2003. Item 12. Results of Operations and Financial Condition. On October 28, 2003, Transaction Systems Architects, Inc. issued a press release announcing its results for the quarterly period ending September 30, 2003. A copy of this press release is attached hereto as Exhibit 99.1. SIGNATURE Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized. TRANSACTION SYSTEMS ARCHITECTS, INC. Date: October 28, 2003 By: /s/ David R. Bankhead ------------------------------------ David R. Bankhead Chief Financial Officer, Treasurer and Senior Vice President EXHIBIT INDEX Exhibit Number Description 99.1 Press Release, dated October 28, 2003.