Human resources are the most important assets to an organisation and their effective management is the key tornits success. Human Resource Management (HRM) fucilitates the most effective use of employees to achievernorganisational goals.rnThe rapid expansion in the use of computers has brought the growth in the applications of computer to thernHuman Resource (HR) area. Originally, the use of computers in this area was limited to such routinernfunctions as producing pay checks, payroll reports, etc. Today, full fledged Human Resource InformationrnSystems (HRIS) have been developed that support other activities beyond these routine functions.rnThe various type of systems that come under HRlS full into three major categories: Decision Support Systemsrn(DSS), Executive Information Systems (EJS), and Expert Systems (ES). Expert systems development in HRrndomains is helpful for solving unstructured HRM activities.rnThis study experiments with the development and application of ES in HRM, taking personnel selection forrnpromotion in Federal Civil Service Commission of Ethiopia as a case and using existing resources andrnfacilities at the School of Information Studies for Africa (SISA). As a result, a prototype expert system isrndeveloped using expert system shell - KnowledgePro, and rule based knowledge representation approach. Thernfeatures and capability of the prototype system developed in this work is demonstrated and discussed.rnThe knowledge required for performing the task is extracted from: domain experts, written documents (onrnrules and regulations of promotion process), and analysis of actual cases processed.