David Hoffman  MILVETS Systems Technology, 4675 Annex Building, 6401 Security Boulevard, Baltimore, Maryland 21235 (dyhoffman@yahoo.com). Mr. Hoffman is a senior accessibility and usability specialist with extensive Web technology experience. In his current position, he provides user interface accessibility and usability design support for the Social Security Administration. He serves as a top agency expert on interactions between Web applications and assistive technologies, as well as on achieving Web application accessibility. In addition to mentoring various project teams in accessibility issues, Mr. Hoffman contributes to the definition of implementable interactive standards that incorporate both accessibility and usability. Mr. Hoffman holds a master's degree in applied information technology from Towson University. He is a member of the Usability Professionals' Association (UPA).

Eric Grivel  Lockheed Martin Information Technology, 3300 Lord Baltimore Drive, Baltimore, Maryland 21244 (egrivel@acm.org). Mr. Grivel is a senior software developer with 18 years of professional experience in architecture and application design and implementation. In his current position at Lockheed Martin, he supports the Social Security Administration's Web applications. Mr. Grivel has a master's degree from the Delft University of Technology. He is a member of the Association for Computing Machinery (ACM).

Lisa Battle  Lockheed Martin Information Technology, 3300 Lord Baltimore Drive, Baltimore, Maryland 21244 (lbattle@acm.org). Ms. Battle is a senior user interface designer with more than 12 years of experience creating usable software, Web-based applications, and Web sites for clients in a variety of industries and the federal government. Her work focuses on making users successful and achieving business goals through a combination of analysis and iterative design techniques. Over the past five years, Ms. Battle has been instrumental in introducing user-centered design into the Social Security Administration, as well as contributing to standards definition and integrating user-centered methods into project life cycles. Ms. Battle holds a master's degree in cognitive psychology and human factors from George Mason University. She is a member of the Usability Professionals' Association (UPA) and the Association for Computing Machinery (ACM-CHI).