Measurement methods have significant meaning for user’s trust to software trustworthiness. Data mining is one of technologies through which measurement methods and tools can collect trustworthiness data to calculate software trustworthiness. In this paper, a Measurement Method based on Data Mining (MMDM) is proposed, trying to improve correctness of conclusion made by user toward provider’s service trustworthiness. This method introduces the formal definitions of trust and trustworthiness, static and dynamic trustworthiness data into measurement principle, then illustrates MMDM in detail with formal Software Trustworthiness Measurement Language (STML), thus to reflect software trustworthiness, assist user to make correct decision.
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