PRINCIPAL OFFICES BOARD OF DIRECTORS  Business Unit Offices Corporate Headquarters Transaction Systems Architects United States • Omaha Argentina Australia Bahrain Brazil Canada France Germany Greece Italy Japan Korea Mexico The Netherlands Russia Singapore  South Africa Spain United Kingdom United States Harlan F. Seymour Chairman of the Board • Transaction Systems Architects, Inc. Principal • HFS LLC Gregory D. Derkacht President and Chief Executive Officer • Transaction Systems  Architects, Inc. Roger K. Alexander Chief Executive Officer • S2 Card Services Ltd John D. Curtis Attorney Jim D. Kever Partner • Voyent Partners LLC Frank R. Sanchez President • Leveraged Product Development Division • Fidelity  Information Services, Inc. John E. Stokely President • JES, Inc. LLC Investor Information  A copy of the Company’s Annual  Report on Form 10-K for the year ended September 30, 2004,  as filed with the Securities and Exchange Commission, will be  sent to stockholders free of charge upon written request to:  Investor Relations Department  • Transaction Systems Architects,  Inc. • 224 South 108th Avenue • Omaha, Nebraska 68154 Transfer A gent  Communications regarding change of  address, transfer of stock ownership or lost stock certificates  should be directed to: Wells Fargo Shareowner Services • 161  North Concord Exchange • South St. Paul, Minnesota 55075 Stock Listing  The Company’s common stock trades on the  NASDAQ Stock Market ® ‚ under the symbol TSAI.  Annual Meeting  The Annual Meeting of Shareholders will be  held at 10:00 a.m. on Tuesday, March 8, 2005 at the Marriott  Hotel • 10220 Regency Circle • Omaha, Nebraska Independent Public Accountants  KPMG LLP • Two  Central Park Plaza • Suite 1501 • Omaha, Nebraska 68102 ©2005 Transaction Systems Architects, Inc. All rights reserved. The NASDAQ Stock Market ® ‚ is a registered trademark of the Nasdaq Stock Market, Inc.  1/6/05 1:45:46  AM AM 8818_Fnl.indd 7