中文摘要：

Web服务近年来一直是学术界和工业界的研究热点，其中如何准确而高效地找到符合用户需求的Web服务，更是制约Web服务应用发展的重要的问题。目前，为了提高Web服务发现的质量与效率，有很多新颖且有效方法被提出。文中根据Web服务发现技术的研究现状，主要从系统结构、服务描述、匹配方法方面对当前的Web服务发现技术进行归类和介绍，分析和比较了各种服务发现方法的优势和缺点，据此提出了Web服务发现技术面临的主要问题并指出了今后研究发展方向。

英文摘要：

The research on Web services has become a hot spot both in academic and industrial circles. One of the most important issues is how to discover the Web services for the requestors efficiently and effectively. Nowadays, more and more novel Web services discovery methods are presented. This paper introduces current Web service discovery techniques from the aspects of system structure, Web services description, matching. Analyze their advantages and disadvantages. Based on those, bring out the basic issues in current Web service discovery techniques, and point out the developing direction.