Introduction: Nowadays, intense competition and technology changes make an increasing pressure to organizations and their various ways for increasing manpower productivity. Human resources are expected at this time to have greater impact on their products and services. This is the exact thing that caused competency to become an important factor in competitive environment. Competency term is used for describing the complex of behaviors that reflect the single composition of knowledge, skills, abilities and motives that are related to organizational role. The goal of this review article was a comprehensive introduction of competency and its application in designing training programs.

  Conclusion: The advantage of using competency for designing training programs in one aspect is the exact diagnosis of educational needs and increasing the efficiency of education and on the other aspect is applicability of learning and avoiding from just knowledge transferring .