ABSTRACT
Recently, web service has become an important issue for developers. Selecting a specific service is a crucial task. Some
approaches develop extensive description and publication mechanisms while others use syntactic, semantic, and
structural reviews of Web service specifications. It is very crucial for finding the most suitable web service from a
large collection of web services for successful execution of applications. In many cases, the value of a QoS property
may not be precisely defined. Recently, fuzzy is considered as the dominant approaches in Web services which can
deal with fuzzy constraints have been proposed. Therefore fuzzy logic can be applied to support for representing such
imprecise QoS constraints. In this paper, we will present an overview which focus on developing fuzzy-based
approach for Web service discovery. This paper also describes the web service challenges on fuzzy mechanism that
summarized and analyzed in order to assess their benefits and limitations.
Keywords: - Fuzzy logic, QoS, Web service, Discovery, Survey