Ali Akbar Ahmadi - Professors of public administration, Payame Noor University, Iran
Abolghasem Bagheri Sirayi - M.A. in public administration , Payame Noor University, Iran
Mohammad Hossein Moghadasan - M.A. in public administration , Payame Noor University, Iran

Dynamic capabilities refer to an organization's responding ways to the environmental rapid changes. It is necessary to study on the organizational dynamic capabilities for two reasons: studying the organization's activities in crisis times, and the concentration of the present management science on knowledge management as an important determining factor of vocational excellence and competitive advantage. Our motive to prepare this paper is to respond to the question that if knowledge management plays a role in improving the organization's dynamic capabilities and as a result, increasing vocational excellence and competitive advantage? In this research, the set of hypotheses were studies and examined based on regression model on a number of governmental companies and at the end, results showed that organizational internal and external knowledge management elevates dynamic capabilities by information technology markedly.

knowledge management, dynamic capabilities, information technology