This report comprises a detailed evaluation of three IBM microcomputer-based school information management systems: Student Information and Records System (SIRS) by Management Information Group, The School System (TSS) by Columbia Computing Services, and Computer Educational Management Accounting System (CEMAS) by Computerlib. These three systems were evaluated against six major factors, each defined by a detailed and comprehensive set of criteria: product scope and function, ease of use, technical considerations, support and services, product qualifications, and vendor. All evaluations were conducted in schools using real and full school data, and all key system capabilities were tested as they related to database creation and maintenance, prescheduling, scheduling, transition to operational status (and semester turnover), attendance recording and reporting, progress recording and reporting, report generation, and utility functions. Each product evaluation describes the testing environment and conditions, lists evaluation results and observations, and summarizes the strengths and weaknesses of the system. Results show that one system, The School System by Columbia Computing Services, can effectively meet the needs of both junior and senior high schools. Six appendixes are included: the general questionnaire from which the criteria were derived, the interview guide and detailed checklist, the detailed scoring comparison form, SIRS user group member list, recent product developments, and a full re-simulation of the relative suitability of the three systems. (TE)