William E. Fisher

WILLIAM E. FISHER is the Chief Executive Officer and Chairman of the
Board of Transaction Systems Architects, Inc. He was named Chairman of
Transaction Systems Architects, Inc. at the company’s founding in
December 1993. He also is Chief Executive Officer of TSA and Chairman of
ACI Worldwide. Since joining ACI in 1987, Mr. Fisher has held various
positions, including Vice President of Financial Systems, Senior Vice
President of Software and Services, and Executive Vice President and
Chief Operating Officer. Prior to joining ACI, he was President of First
Data Resources’ Government Services Division. Mr. Fisher holds a BS
degree from Indiana State University and an MBA from the University of
Nebraska.