A Dissertation Submitted in Partial/Fulfillment of the Requirements for Award of the Degree of Master of Science in Human Resource Management (MSc HRM) of Mzumbe UniversityThis study was carried out so as to analyze the perception of employees on the effectiveness of OPRAS in PMO-RALG, taking Dodoma and Dar es Salaam region as case studies. Specifically, the study focused on examining the operationalisation of OPRAS, the status of OPRAS and challenges facing OPRAS. This study employed both cross sectional as well as a case study to get data about the problem. The sample mainly consisted of 80 employees who were obtained by multistage cluster sampling. Data collection method included interviews and documentation review. The data analysis was through the use of SPSS. The results showed that most staff had negative perception on the way the OPRAS was used in human resource management. In addition, few cases of value addition were reported for sections using OPRAS such as making staff creative, confidence and productive. However, issues of delay in committing funds, low management priority on OPRAS and use of fixed salary were reported to be the major challenges facing OPRAS. It is therefore recommended that the government should devise the regulations that will enforce the use of OPRAS. This should go hand in hand with revising the payment system of which we currently use fixed rate that is not matching with the OPRAS principles. Funds should be committed timely to make the staff responsible and hence meet their agreed objectives.