A web services-based approach to develop a networked information integration service platform for gear enterprise

In order to deal with the problems of information integration and data sharing across distributed heterogeneous application systems in gear enterprises, it is imperative to build up a high quality information integration platform. Web Services, an emerging form of service-oriented architecture (SOA) for distributed computing, have the potential to serve as a key enabling technology to integrate heterogeneous systems under the distributed environment. This paper presents a novel information integration service platform which offers better support for the networked manufacturing of gear enterprise by taking full advantage of technologies of SOA and Web services. In this paper, the information integrated operation mode of gear enterprise networked manufacturing is deeply analyzed and the functional architecture of the networked information integration service platform is proposed. Furthermore, the application integrated framework of gear enterprise is constructed and the software architecture of the service platform is implemented in the .NET environment. Finally, an actual application example of hypoid gear networked manufacturing is provided to demonstrate the practicability of the proposed platform.     

Everything-as-a-service platform for on-demand virtual enterprises

While constructing virtual enterprises, it is crucial to flexibly integrate heterogeneous business resources and processes of different business partners and make them collaborate dynamically. Keeping involved IT systems or components as autonomous and loose-coupled services, the “Everything as a Service” concept supports flexible integration of heterogeneous applications. We adopt this concept and analyze the challenges in virtual enterprise construction, then propose a service platform for on-demand virtual enterprises. The platform supports flexible integration of networked resources, and facilitates virtual enterprise construction with business process utility, trusted service composition and data service centric business collaborations. At the end of the paper, together with a case study, experimental evaluations in contexts of concurrent multi-users are presented, showing the effectiveness and performance of the platform.     

Service oriented architectures: approaches,technologies and research issues

Service-oriented architectures (SOA) is an emerging approach that addresses the requirements of loosely coupled, standards-based, and protocol- independent distributed computing. Typically business operations running in an SOA comprise a number of invocations of these different components, often in an event-driven or asynchronous fashion that reflects the underlying business process needs. To build an SOA a highly distributable communications and integration backbone is required. This functionality is provided by the Enterprise Service Bus (ESB) that is an integration platform that utilizes Web services standards to support a wide variety of communications patterns over multiple transport protocols and deliver value-added capabilities for SOA applications. This paper reviews technologies and approaches that unify the principles and concepts of SOA with those of event-based programing. The paper also focuses on the ESB and describes a range of functions that are designed to offer a manageable, standards-based SOA backbone that extends middleware functionality throughout by connecting heterogeneous components and systems and offers integration services. Finally, the paper proposes an approach to extend the conventional SOA to cater for essential ESB requirements that include capabilities such as service orchestration, “intelligent” routing, provisioning, integrity and security of message as well as service management. The layers in this extended SOA, in short xSOA, are used to classify research issues and current research activities.     

Development of Web-Telecom based hybrid services orchestration and execution middleware over convergence networks

Influenced by the success of Web service technologies for development and deployment of IT services, Telecom R&D community starts to adapt and build similar service delivery platforms, trying to manage the hard constraints in Telecom domains, such as existence of heterogeneous protocols, extensive use of asynchronous communications and real-time delivery requirements, which will open a new paradigm for Web service based voice over IP communication and also can be easily integrated in end-to-end SOA solutions. In this paper, we study both the Web-Telecom based hybrid services orchestration and execution middleware for coordinating existing Telecom services and IT services. In particular, we focus on the design and implementation Web-Telecom based hybrid service bus (WTSB), event-driven Telecom service engine (EDLE) and also the integration layer for the messages dispatching and transformation between WTSB and EDLE, which can make the EDLE service engine seamlessly integrated into WTSB. More specifically, with multimedia conferencing scenarios, we demonstrate how our hybrid services orchestration and execution middleware orchestrate multimedia conferencing communication services together, and also make performance measurement and analysis. Finally, we give the conclusions and future work.     

基于Web Services的企业间SOA模型研究

针对当前企业应用集成存在的诸多问题,提出了一种基于网络服务的面向服务架构企业应用集成模型.该模型通过在企业已存在的系统之上建立基于原子服务的合成服务封装层和业务流程层,按照迭代方法来定义企业间服务,从而为企业问信息共享与应用集成提供了一种有效方法与全新机制.在某企业应用集成实践中表明,该模型具有较好的可重用性与开放性.     

一种基于SOA的企业集成平台

提出一种基于SOA的企业集成平台——JSSOA,以企业服务集成中间件为核心,实现异构系统和多种类型服务的透明集成,支持基于MDA方法面向最终用户的流程建模和服务组合、基于语义及QoS的服务查找、基于服务的个性化应用系统用户界面创制。该平台封装了复杂的SOA技术细节,使基于SOA的应用系统的构建、运行和维护更简单、高效。     

面向普适计算环境的Android平台服务编排框架

普适计算环境下的智能移动设备是面向终端用户的服务资源聚集和编排的主要载体。普适计算环境中的服务资源具有多种不同的形态,包括基于互联网提供的Web服务、终端设备自身服务和资源(例如本地应用、自带传感器)以及所处环境中可访问的服务(例如环境传感器)。此外,不断变化的上下文环境对软件本身的自适应能力提出了新的要求,而移动设备上的服务编排受设备计算能力和资源的限制。为了解决上述问题,提出了一个面向普适计算环境的Android平台服务编排框架ASOF。通过ASOF,移动终端可在运行时获取所需业务流程的服务模板,并对该模板中的抽象服务进行服务绑定,实现轻量级的混合服务编排,使终端能够动态获得调用普适计算环境中各种类型的服务的能力。随后,基于OSGi Felix框架给出了一套ASOF的标准实现,并以一个具体案例验证其有效性。     

2005 EDOC: meeting the challenges of enterprise computing

An increasing demand for interoperable applications exists, sparking the real-time exchange of data across borders, applications, and IT platforms. To perform these tasks, enterprise computing now encompasses a new class of groundbreaking technologies such as Web services and service-oriented architecture (SOA); business process integration and management; and middleware support, like that for utility, grid, peer-to-peer, and autonomic computing. Enterprise computing also influences the processes for business modeling, consulting, and service delivery; it affects the design, development, and deployment of software architecture, as well as the monitoring and management of such architecture. As enterprises demand increasing levels of networked information and services to carry out business processes, IT professionals need conferences like EDOC to discuss emerging technologies and issues in enterprise computing. For these reasons, what started out as the Enterprise Distributed Object Computing (EDOC) conference has come to encompass much more than just distributed objects. So this event now used the name International EDOC Enterprise Computing Conference, to recognize this broader scope yet also retain the initial conference's name recognition.     

MDA与云计算、SOA的比较研究

云计算能支持符合特定条件的企业或单位,对更多希望获得更好竞争力的企业,云计算不是一个好的选择。基于服务的体系结构((SOA)虽然有助于企业快速实现系统集成,但随着服务数量的增加,用户寻找和使用服务依然是个难题,也不是合适的选择。模型驱动的体系结构(MDA)从方法论和标准方面为企业提供独立于技术实现的商业应用平台,由模型映射的构件以及构件组装与模型库和构件库的管理将会对企业自主信息系统的进化起到极大的支持作用。     

基于SOA的人工影响天气业务平台解决方案

为提高人工影响天气业务系统的服务水平,针对目前系统存在的不足,通过研究面向服务架构(SOA)和WebService技术,提出了基于面向服务架构(SOA)的人影作业综合业务平台解决方案.给出一个采用Web Service技术设计实现的四层结构的面向服务的基础框架,即分为基础数据层、服务提供层、业务应用层、用户表现层.阐述该框架在WebGIS平台上实现方法,验证了方案的可行性.为构建人影业务系统平台提供一种可行且优越的方案.     

Automatic derivation of BPEL4WS from IDEF0 process models

Integration definition for function modelling (IDEF0) is one of the most popular notations for modelling business processes. It employs a rather simple and intuitive modelling construct, consisting of boxes representing functions and arrows connecting them signifying flow of information and materials. Web services on the other hand are an emerging technology for implementing distributed systems. Web service orchestration languages, such as Business Process Execution Language for Web Services (BPEL4WS), are the emerging approach for describing processes as networks of coordinated web services. Business processes as captured in IDEF0 models, however, may contain both web services as well as other types of activities which need to be coordinated. By automatically analysing the Extensible Markup Language (XML) definition of an IDEF0 model, we can identify how web services interact with other activities and at runtime generate code to support the orchestration of web services with the overall business process. The approach proposed is independent of the orchestration language and ensures an implementation independent model for specifying web service orchestrations. This approach also enables the top-down analysis of a business process to its constituent web services and avoids any misalignment problems during design time between the two.     

Dynamic SOA Framework to Support Ad Hoc Enterprise Alliance Formation

Collaboration among businesses is needed to successfully fulfill a given task and goal. Service-Oriented Architecture (SOA) has been regarded as an efficient platform to support flexible interoperability among various enterprises by discovering, selecting and composing services. However, since a large number of enterprises have been participating in this SOA platform, relationships among these enterprises are getting too complicated to obtain flexibility and scalability for efficient collaboration. Thereby, in this paper, we propose a dynamic SOA platform to discover service chains for building ad hoc enterprise alliances where the only relevant enterprises are sorted out and merged. As a result, given an event, decision makers can find out which enterprises (and services from the enterprises) might be selected for their collaboration. The proposed SOA platform has been applied to mobile advertisement application as a case study. With respect to two indicators (i.e., precision and agility), we have shown that the proposed SOA outperforms traditional enterprise collaboration schemes.     

Web服务设计时系统的研究与实现

Web服务技术为异构应用之间的集成和互操作提供了有效的解决手段,目前多数的Web服务应用支撑平台没有提供一个集成的设计时系统的支持。提出并研制了一个集成的Web服务设计时系统,为多种异构的服务实现体包装成Web服务提供了支持,设计时系统最终会生成运行时系统需要的部署文件。     

基于ESB的SOA多层架构研究与应用

为了解决企业信息异构和数据整合问题,结合SOA和ESB技术,设计了一种基于ESB的SOA多层开发框架,并构建了一种完全基于OSS(开源软件)平台、轻量级的企业应用集成开发架构.该架构以Mule ESB作为集成服务的基础,XFire作为Web Service的实现,充分使用可配置的策略实现各类系统组件的灵活拆装.最后,实现了人事管理系统、销售管理系统和财务管理系统这三个原型之间的无缝集成,达到了系统的集成,同时也为以后的业务提供了较好的可扩展性.     

基于MapGIS-IMS SOA的WebGIS研究与实现

运用基于面向服务的体系结构（SOA）的WebService技术可以为WebGIS中诸如并发访问能力、系统的异构兼容性、系统的集成和维护、信息共享和发布以及跨平台互操作等多方面的问题,提供较为理想的应用方案。MapGIS—IMSSOA开发平台采用SOA构建分布式WebGIS,将服务与WebGIS相结合,用服务枸建封装好的、可重用的、易拓展维护WebGIS。     

面向服务架构在动态企业应用集成中的应用

现代企业间的竞争日趋激烈，为迅速实现业务过程重组并敏捷地响应市场变化，企业产生了进行动态企业应用集成（EAI）的需求。粗粒度的松耦合的面向服务架构（SOA）是一个支持动态EAI的具有较好健壮性的架构。通过对SOA的分析，提出了一个通用的SOA基础模型，分析了基于SOA的动态EAI技术和实现方式。最后结合医学资源网项目，开发了一个基于SOA的动态EAI平台.     

Model-based services convergence and multi-clouds integration

With the development of cloud computing, IT users (individuals, enterprises and even public services providers) are transferring their jobs or businesses to public online services provided by professional information service companies. These information service companies provide applications as public resources to support the business operation of their customers. However, no cloud computing service vendor (CCSV) can satisfy the full functional information system requirements of its customers. As a result, its customers often have to simultaneously use services distributed in different clouds and do some connectivity jobs manually. Services convergence and multi-clouds integration will lead to new business models and trigger new integration technologies that provide solutions to satisfy IT users’ complicated requirements. This paper firstly reviews the development of cloud computing from business and technical viewpoints and then discusses requirements and challenges of services convergence and multi-clouds integrations. Thirdly, a model based architecture of multi-clouds integration is provided. Business logic modelling for cross-organizational collaboration, service modelling and operation modelling methods with relative model mapping technology are discussed in detail. Some key enabling technologies are also developed. At last, case studies are presented to illustrate the implementation of the technologies developed in the paper.     

IT-Service-Management – Ein Modell zur Bestimmung der Folgen von Interoperabilitätsstandards auf die Einbindung externer IT-Dienstleister

This article examines the impact of interoperability standards such as Web Service standards or semantic annotation of services on the outsourcing of business processes or process activities. Especially the integration of external IT service providers is considered. Therefore a decision model is developed for optimizing service portfolios regarding risk-/cost-aspects. By using an extract of the application process for current accounts we exemplify the implementation and the results of the presented model.     

Industrial application integration using the unification approach to agent-enabled semantic SOA

Within the enterprise, information infrastructure as the mean to bring together different software applications is the key component to enable cooperation and information and knowledge exchange in an open-distributed environment. The paper addresses the issues of industrial application integration in business processes using agent-enabled service-oriented architectures (SOA). In this paper, we show that agent-enabled SOA can play an important role for service integration. Our framework combines Web services (WS) and intelligent agent technologies orchestrated by a business process management system. This framework looks for unification of agent and WS service models, is grounded in a semantic SOA of an agent platform and is supported by the Component Agent Platform Over .NET Framework agent platform tools. We describe the architecture and illustrate the approach by an industrial application scenario from petroleum wells’ drilling.