This report summarizes the procedures and results of a 2-year project carried our collaboratively by a university-based research and development center and a nearby high school. The first section summarizes the setting and rationale of the project (the Focused Flexibility project.) The ideas basic to the project were (1) a school should try to provide for each student only as much flexibility of activities as the student can profit from educationally and as much as the school can handle organizationally; (2) extensive measures of student outputs should be routinely collected and used, not only to maximize the student's chance for educational progress but also to provide appropriate positive feedback to all students. The next section of the report describes how these ideas were implemented. It emphasizes the importance of records management activities and describes a school records system called GREG, also developed for the project. Some difficulties with respect to records-management are discussed. The concluding section considers some of the main reasons for the difficulties encountered in establishing and maintaining accurate internal files in a school. It argues that these difficulties highlight an important but seldom recognized requirement for successful flexibility -- the capability to design and use records-management systems of high quality within the school. (Author/EA)