Introduction: Curriculum evaluation is historically as rich as education. The evaluation concept is so comprehensive that contains several evaluation activities with the common function of investigating a certain curriculum in a given administrative context. Therefore, the evaluation methods and strategies are different. In this study, the differences in evaluation studies are classified on the basis of six factors curriculum development stage, the evaluation subject, criteria, the types of data, data summarization method and function. In each stage, the development team focuses on a particular task hence, certain types of evaluation are presented at each stage in order to ensure a successful administration of the new curriculum.