Donald F. Ferguson  IBM Software Group, 294 Route 100, Somers, NY 10589 (dff@us.ibm.com). Dr. Ferguson is one of 55 IBM Fellows, the highest technical position in the IBM engineering community of 200,000 technical professionals. He is the Chief Architect and technical lead for the IBM Software Group (SWG) family of products, which includes Lotus, Rational, WebSphere, DB2, and Tivoli. Dr. Ferguson chairs the SWG Architecture Board, bringing together the SWG's lead product architects. His most recent efforts have focused on Web services, business process management, client platform, outsourcing/hosting platform, grid services, and application development for WebSphere. He was the chief architect for the WebSphere family of products from its inception until assuming the role of SWG Chief Architect in 2003.

Marcia L. Stockton  IBM Software Group, 2827 Poso Flat Road, Bakersfield, CA 93308 (mls@us.ibm.com). Ms. Stockton is a Senior Technical Staff Member and master inventor with the IBM Software Group in Research Triangle Park, North Carolina (residing in California), and a senior member of the Institute of Electrical and Electronics Engineers. She leads the Software Group Architecture Board's Programming Model work group, where she drives horizontal integration initiatives and promotes programming model simplification across Lotus, Rational, WebSphere, DB2, and Tivoli products. Her 73 filed U.S. patents range from networking, Web, security, privacy, multimedia, wireless, and pervasive devices to radio frequency ID. In the 1990s, she was the lead architect for IBM's Advanced Peer to Peer Networking and High Performance Routing network protocols. Ms. Stockton joined IBM in 1988 as a networking software professional. She earned a B.A. degree from Swarthmore College in 1975.