<![CDATA[Auto Doorsmer 45 is a vehicle washing and care service in Medan with 15 operational employees, one administrator, and one owner. Employee administration and performance appraisal were previously handled manually, causing fragmented records, slow retrieval, and evaluations that depended strongly on managerial observation. This study develops a web-based employee administration information system integrated with a decision support module using Multi-Objective Optimization on the Basis of Ratio Analysis (MOORA). Requirements were collected through observation, interviews, documentation, and literature review, while system development followed the Waterfall model. Fifteen employees were evaluated using five benefit criteria: attendance (0.25), discipline (0.20), responsibility (0.20), work quality (0.20), and teamwork (0.15). The calculation produced the highest optimization value for alternative A9 (0.3002), followed by A7 (0.2899) and A3 (0.2830). The PHP-MySQL implementation integrates employee records, criteria and weights, periodic scores, automated MOORA calculation, ranking, and reports. Black-box testing of ten functional scenarios showed that all specified functions produced the expected outputs. The system therefore provides a more structured, traceable, and consistent appraisal process, while the final managerial decision remains with the business owner.]]>
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