This is one of a series of reports based on an ongoing reality test of systemic evaluation for instructional decision making. This feasibility study is being carried out by the Center for the Study of Evaluation with the Laboratory in School and Community Relations at a suburban Los Angeles high school (called Site A). Viewing a school as a cultural/ecological system, systemic evaluation is a set of principles to guide local development of processes to gather, organize, and utilize information relevant to the needs and values of the system and its members. This paper examines the issues and problems involved in implementing school and teacher access to data in the district computerized information system. It proposes a distributed (decentralized) data processing approach utilizing microcomputer systems throughout the district combined with off-line processing and/or query systems. Distributive processing concerns include: data file size, backing-up data, file compatibility, data formats, programming language compatibility, multiple files, archival files, communications systems, graphic displays, multiplicity of databases, and data codebooks. Appendices contain a description of the district's current data processing services, and lists of standard and non-standard reports generated. (BS)