SPL-TQSSS: A Software Product Line Approach for Stateful Service Selection

N. Gámez, J. E. Haddad, L. Fuentes
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引用次数: 8

Abstract

An important problem in Web services composition process is optimal selection of services meeting the user functional requirements (tasks of a workflow) and ensuring a reliable execution of the composition. Therefore, non-functional properties of services such as their transactional behavior as well as their Quality of Service (QoS) must be considered. In this context, a challenging objective is to assist users in integrating on the fly the operations of services to realize their required tasks by further meeting their transactional and QoS preferences. Towards this purpose, we present SPLTQSSS, a Software Product Line based approach for Stateful (conversation-based) Service Selection problem with Transactional and QoS support. SPL-TQSSS considers the set of functionally-equivalent services as part of a service family by modeling their internal operations using Feature Models. Then, SPL-TQSSS chooses the best services, from the service families matching with every task of the workflow, which fit with the user transactional preference and satisfy QoS constraints.
sl - tqsss:一种用于状态服务选择的软件产品线方法
Web服务组合过程中的一个重要问题是最优地选择满足用户功能需求(工作流的任务)的服务,并确保组合的可靠执行。因此,必须考虑服务的非功能属性,例如它们的事务行为以及它们的服务质量(QoS)。在这种情况下,一个具有挑战性的目标是帮助用户动态地集成服务的操作,通过进一步满足他们的事务和QoS首选项来实现他们所需的任务。为此,我们提出了SPLTQSSS,这是一种基于软件产品线的方法,用于具有事务和QoS支持的有状态(基于会话的)服务选择问题。通过使用特征模型对服务的内部操作进行建模,sl - tqsss将功能等效的服务集视为服务族的一部分。然后,从与工作流的每个任务匹配的服务族中选择符合用户事务偏好且满足QoS约束的最佳服务。
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