This volume describes the evolution and implementation of the Junior High School Network Project (JHSN), one of nine programs selected by the Documentation and Technical Assistance (DTA) Project as demonstration sites for enhancing the problem solving capacities of urban schools. As described, the original proposal for the JHSN was directed toward improving the internal organization of two schools through the application of a Managament by Objectives (MBO) process. The report's first chapter summarizes the project's design, which relied on three mechanisms to structure interaction: (1) a school wide plan; (2) a structure for planning; and (3) training school staff and administrators and assisting them in implementing the plan. Chapter II describes typical activities of project staff and school personnel as they attempted to achieve the MBO process. Chapter III relates activities to actual social organization and interrelationships in participating schools. The concluding chapter discusses implications of the JHSN project for educational problem solving. Extensive appendices include descriptions of the program evaluation methodology, project plans, documentation of project activities, staff development course syllabi, student data, and letters between DTA staff and the principals of the two participating schools. (Author/GC)