This administrative and instructional guide offers information and recommendations for computer design techniques based on literature sources and school district applications; design of micro- and mini-computer systems is intended for those with little or no experience. Chapter 1, "Planning for the Computer System: Choosing Purposes and Parts," deals with selecting inputs, including strategic and tactical plans, a feasibility study, data and material inputs, and the marketplace. "Designing a Logical Structure for the Computer System: Establishing Organization," chapter 2, discusses comprehensive and integrated computer systems, integrating system subsystems, and internal and external user support subsystems. Chapter 3, "Designing Effective Processes for the Computer System: Determining Outputs and Dealing with Constraints," presents information on effectiveness, security, software piracy, and equal access. "Designing Efficient Processes for the Computer System: Implementing the Computer System," chapter 4, discusses developing a change plan, a timetable, support, and training programs. Chapter 5, "Evaluating the Computer System: Providing for Feedback and Adaptation," analyzes environmental change, system stress, and ongoing planning. "Synthesis of the Model," chapter 6, forms a concise design guide. The final chapter offers conclusions and future implications. Eight appendices provide forms for school use, an annotated bibliography, and selected school district references. (CJH)