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In order to enhance the efficiency of information system's development, capture business components with high reusability, a business component deign method based on the feature matrix was proposed. Through analyzing the existing business models, a domain business model oriented to component analysis was proposed, the elements composite models were described and business components identification algorithm based on the relationship between business elements was given. In the identification process, the concept of business elements similarity which can overcome the limitation of artificial weight was given. Application example showed that the algorithm effectively reduced the time complexity and identified highly reusable business components.