A View Based Survey on Web services Registries

Web services registries are a cornerstone for the emerging service-oriented architecture and constitute a critical resource for Web services. Based on a case study we systematically illustrate and evaluate current registries and compare different approaches regarding their architectures and data models in the context of two views: the human and machine (service) based views. The human view on Web services registry architectures is illustrated with the help of a case study. The machine view on Web services registry architectures is illustrated from a software-service point of view. The data model of Web services registries is described in detail from a machine based view. The corresponding human view is described from an abstract level. Finally, the Web services publishing and discovery are compared from a human and a machine based view.