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Analysis of Dynamic Web Services: Towards Efficient Discovery in Cloud

机译：动态Web服务分析：迈向云中的高效发现

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Web services are very dynamic as they can be added, modified and deleted from the repository on the fly. Discovering web services for service composition have special requirements. In the service composition, service requirement is not only to satisfy its functional specification but it also needs to ensure that the selected composing services are compatible with respect to their input/output structure and its associated data types. Web Service community [1] organized the functionally similar services together in a group. But one important drawback of using web service community in the service composition is that it requires further analysis of the discovered service communities for selecting appropriate service which can be composed based on its input/output structure and data types. This paper proposes data structures, which can be used to create web service family [2] by filtering not only on the basis of functionality but also on the basis of its input/output structure, which are required for composing services with one another. In order to speed up the web service family creation process, the creation of web service family is divided in two phases. The first phase of the proposed approach introduces a novel concept of business family and dynamic business web service (DBWS) tree, which are used to organize all web services in the tree structure on the basis of their business context and input/output structure. In the second phase, the concept of DBWS tree is used further to create the web service families. The DBWS resembles the classification and organization of businesses in NAICS. The DBWS tree can be used very efficiently for creating web service families, which in turn can be used for selecting service efficiently in service composition.
机译：Web服务非常动态，因为可以动态地从存储库中添加，修改和删除它们。发现用于服务组合的Web服务有特殊要求。在服务组合中，服务要求不仅要满足其功能规范，还需要确保所选的组合服务在其输入/输出结构及其关联的数据类型方面兼容。 Web服务社区[1]将功能相似的服务组织在一起。但是在服务组合中使用Web服务社区的一个重要缺点是，它需要对发现的服务社区进行进一步分析，以选择可以基于其输入/输出结构和数据类型组成的适当服务。本文提出了一种数据结构，该数据结构可用于通过不仅基于功能性而且基于其输入/输出结构进行过滤来创建Web服务家族[2]，这是相互组合服务所必需的。为了加快Web服务系列的创建过程，将Web服务系列的创建分为两个阶段。提议的方法的第一阶段引入了业务族和动态业务Web服务树（DBWS）树的新概念，用于基于树的结构将所有Web服务根据其业务上下文和输入/输出结构进行组织。在第二阶段，将进一步使用DBWS树的概念来创建Web服务系列。 DBWS类似于NAICS中的业务分类和组织。 DBWS树可以非常有效地用于创建Web服务系列，而Web服务系列又可以用于在服务组合中有效地选择服务。

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