William E. Hefley

Team-based incremental acquisition of large-scale unprecedented systems

This paper addresses certain shortcomings of traditional acquisition approaches, especially for large-scale, unprecedented systems. Shortcomings in the requirements engineering processes are emphasized. We review incremental acquisition approaches and identify issues essential to successful application of incremental acquisition approaches to overcome these shortcomings.In identifying these issues, cases based on systems being developed by the Air Force Space Command are examined. They are the Granite Sentry (GS), Space Defense Operations Centers (SPADOC), and Mobile Command and Control System (MCCS) programs. Three key aspects of the lessons learned from these efforts parallel the steps suggested by a recent Air Force Studies Board report for reducing risk in developing unprecedented systems. These are team-based development, managing requirements uncertainty and change, and increased use of incremental acquisition approaches.

Understanding, Using and Designing for Educational Uses of the World-Wide Web

This tutorial is intended for the audience that is acquainted with the Internet and its services, but are lacking detailed knowledge about World-Wide Web (WWW) concepts and uses. The tutorial is intended to give the student an understanding of WWW software, some background in understanding issues in designing information spaces and services, and an overview of designing and coding HTML pages. Examples from educational settings will be used.