Documents Data for "Composition of Heterogeneous Web Services: A Systematic Review"

This repository contains document data for a Systematic Literature Review (SLR) titled "Composition of Heterogeneous Web Services: A Systematic Review". Inclusion/exclusion decision and extracted data from the documents are included. Three main types can be identified on the Web and on corporate networks: SOAP services, which use the homonym protocol and well established technologies, such as WSDL; RESTful services which employ HTTP directly and conform to the constraints of the REST architectural style; and event-oriented services that take the initiative in notifying their clients about relevant facts. The co-existence of these service types has brought considerable research interest on service type heterogeneity in Web Service composition. The research question of SLR is "How are services of heterogeneous types (SOAP, RESTful and \event-oriented services) composed?". Documents that may answer this question were searched in Scopus and IEEE Xplore, from conferences and journal sources, without a time limit. Search results were last updated in July 22, 2018 and yielded 63 relevant documents published from 2005 to 2018. Most works (48) target SOAP and RESTful services heterogeneity, followed by a smaller group of 18 targeting SOAP and event-oriented heterogeneity. The other two combinations, RESTful/event-oriented and SOAP/RESTful/event-oriented sum 5 documents. Among these documents, RESTful support was found to be incipient, with most documents violating constraints of the REST architectural style. The method used for heterogeneity support were classified in 7 archetypes: 1. Common description 2. Proxy 3. Middleware 4. Workflow language 5. Event processor 6. Automatic composition 7. Direct Implementation

本仓库包含题为《异构Web服务组合：系统性综述》的系统性文献综述（Systematic Literature Review，SLR）所用的文档数据，涵盖各文献的纳入/排除判定结果及从中提取的相关信息。当前Web与企业网络环境中，可识别出三类主流服务类型：采用同名协议且依托Web服务描述语言（Web Services Description Language，WSDL）等成熟技术的SOAP服务（Simple Object Access Protocol，简单对象访问协议）；直接使用超文本传输协议（HyperText Transfer Protocol，HTTP）并符合表述性状态转移（Representational State Transfer，REST）架构风格约束的RESTful服务；以及主动向客户端推送相关事件通知的面向事件服务。此类服务类型的共存，使得Web服务组合领域中服务类型异构性的相关研究受到广泛关注。本SLR的核心研究问题为：‘如何实现异构类型服务（SOAP服务、RESTful服务与面向事件服务）的组合？’为检索可解答该研究问题的文献，团队在Scopus与IEEE Xplore数据库中，从会议及期刊渠道开展了无时间限制的文献检索。本次检索结果最后更新于2018年7月22日，共获取2005年至2018年间发表的63篇相关文献。其中，针对SOAP与RESTful服务异构性的研究共48项，占比最高；其次为聚焦SOAP与面向事件服务异构性的18项研究；剩余两种组合——RESTful/面向事件服务组合，以及SOAP/RESTful/面向事件服务组合——合计仅5项。经分析发现，现有研究对RESTful服务的支持尚处于起步阶段，多数文献均未严格遵循REST架构风格的约束规则。本研究将用于支持异构服务组合的方法划分为7类原型：1. 通用描述（Common description）；2. 代理（Proxy）；3. 中间件（Middleware）；4. 工作流语言（Workflow language）；5. 事件处理器（Event processor）；6. 自动组合（Automatic composition）；7. 直接实现（Direct Implementation）。