Considering these definitions and other definitions of the competitive advantage shows that direct relation of costumer’s desired values, companies supplied values and values supplied by the company's competitors will determine requirements and dimensions of competitive advantage. From the perspective of the costumer’s values offered by the company with values supplied by competitors are more consistent and closer to his desired values, comparing it can be said that in one or more fields the company having a competitive advantage against its competitors, so that the advantage causes the company to be superior in relation than its competitors in the market, in getting closer to the customer and capturing his heart. The concept of competitive advantage is directly related to the value of the customer So that in a comparable range Whatever the values supplied to a costumer by an organization are closer to his desired values or more consistent with it, it can be said that the organization against its competitors owns the competitive advantage in one or more competitive criteria; In other words, competitive advantage is a value that the organization provides to its customers, so that by the time, it is not offered by the actual and potential competitors