Abstract: The current intelligent question-answer systems(IQAS) are restricted to find the best answer for a simple question. They are unable to meet increasingly complex personalized ctuestion-answer demands of users'. This papertransformed the user question to question-answer service requirement based on the requirement metes description framework RGPS, which passes through rectuirement recognition, rectuirement analysis, requirement verification and so on.Then a local services database constructed by dynamically mining software services in Internet was used to generate the intelligent question-answer service, which could answer some similar questions, with process services composition technology based on services relationship network. We developed an IQAS Uniponse in the traffic domain which verifies the effectiveness and feasibility of our method.

Key words: Uniponse,Web services, RGPS, IQAS, Ontology