Revising WSDL documents: Why and How - Part II

Abstract

In a previous paper Crasso et al. (IC-CrassoRZC2010), we have shown that effectively discovering Web services is subject to avoiding a number of common design errors in publishers´ Web Service Description Language (WSDL) documents. We have therefore proposed guidelines, which unfortunately are applicable only when publishers follow the top-down, a.k.a. contract-first, method to build services, which is not very popular due to its inherent costs. We present an approach to prevent such errors when using its counterpart method, namely bottom-up or code-first, and measure the impact of the approach in service discovery. The rationale behind the study is that since code-first services interfaces are automatically generated by tools that given a service implementation deterministically map programming languages constructs onto WSDL elements, the measurable properties of services implementations may influence resulting services interfaces.