This paper is part of a PhD study, aimed at analyzing the role of job evaluation in improving the performance of the incumbents of the executive posts in the Ministry of Education in the Sultanate of Oman, through job satisfaction as a mediator. As performance evaluation is one of the most important human resources management practices relevant to job satisfaction. When employees sense justice, they will increase confidence in the management of the institution and improve their career when reassuring to the rule of justice. Accordingly, regulatory justice occupied a section of the main survey questionnaire. The objectives are; to discuss the theory of justice, organizational justice in terms of its dimensions and rules due to its relevance to job satisfaction. The study follows the descriptive analytical approach. The findings revealed that justice creates an organizational atmosphere of mutual trust and cooperation to serve the business objectives, and ensures continuity in the quality of staff and the quality of their work. It is a key factor in reducing conflicts between subordinates and subordinates. Finally, distributive justice is on the decision-making side; procedural justice is linked to operations, while interactive justice expresses relationships. |