Abstract:
The aim of the study was to assess the implementation of Open Performance Review Appraisal 
System (OPRAS) at the department of immigration based in Dar es Salaam Tanzania. Questionnaires 
and interviews were used to gather relevant data needed to assess the implementation of OPRAS at 
the area of study. Thus, systematic sampling technique was used to select participants of the study 
and purposive sampling was used to select key informants from the Ministry of Home Affairs and 
10 technical and professional staff. A total of 80 questionnaires were distributed to all participants 
and interviews were administered to heads of departments, directors and supervisors. Only 10 
informants were interviewed from professionals and technical staff.  Data analysis was done with 
the assistance of the Statistical Package for Social Scientists (SPSS- 12.0 versions).  Findings show 
that the department of migration is facing numerous challenges in managing OPRAS including 
lack of knowledge, motivation, commitment, support, budgetary constraints and prioritization. 
The outlined challenges are pronounced to make the implementation of OPRAS system inefficient. 
Finally, the study recommends to  the government to monitor OPRAS implementation in public 
institutions effectively operationalize its mission as aspired by the policy.