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 Completes Acquisition of S2 Systems
(OMAHA,
Neb.—July 29, 2005)—Transaction
Systems Architects, Inc. (Nasdaq: TSAI), a leading global provider of enterprise
e-payments solutions, announced today that it has completed the acquisition
of
substantially all of the assets of S2 Systems.
About
Transaction Systems Architects, Inc.
The
Company’s 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. The Company’s solutions are used on more than 1,755 product
systems in 79 countries on six continents. Visit Transaction Systems Architects,
Inc. on the Internet at www.tsainc.com.