Research and Realization of Spatial Information Service Based on BPEL
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This paper analyzes the actuality of spatial information service,puts forward that the service course of taking user as main body may use method of the workflow to process information conversion and transmission. On base of WS-BPEL 2.0,this paper realizes the SOA spatial information service which takes the course as center,and introduces particularly this implement means of getting services.Keywords:
Realization (probability)
Service catalog
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This paper makes research on the performance system and key technology of BPEL4WS(Business Process Execution Language for Web Services).Besides,with the specific application,it elaborates on the analysis of the development and (realization) of the distributed application system based on BPEL4WS.
Realization (probability)
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To better achieve enterprise business processes in a distributed heterogeneous environment,manage by Internet and collaborate with other enterprises,a workflow management system based on SOA is proposed.Firstly,the limitations of traditional workflow mana-gement system are pointed out.Secondly,the feasibility of integrating SOA with workflow is analyzed and the model of workflow mana-gement system based on SOA is brought forward.The principle of business process integration is expatiated.Lastly,the amelioration and development of the technology project management system of a certain company is as an example which discusses how to apply the workflow technique based on SOA to concrete development of MIS.
Document management system
Workflow Management Coalition
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Current IT industries face the situation of difficult to change business process quickly and expediently during the change of demand and conditions,which is because of high coupling degree between traditional business process and business system.To solve this problem,a technique scheme based on SOA architecture(including WebService and XML standard) is put forward,which uses BPEL as business process execution language to implement the business process integration between departments.At last,meet the goal of building point-to-point organic business process in distributed circumstance based on IBM-SOA methodology and relevant supporting products.
IBM
Business process discovery
Orchestration
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With the complexity of the business environment,many enterprises pay more and more attention to the process management.BPEL-based process component methodology is widely supported.At first,the research on protocol foundations and key techniques of WS-BPEL(web service business process execution language)are made.A BPEL-based business process management system architecture is presented,and the structure of its business process execution engine is emphasized,and then the BPEL process execution is analyzed with an example.At last,the existent problems of WS-BPEL is listed and the potential research direction is pointed out.
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In today's global network-based environment, where mission-critical applications typically run on highly distributed systems, customers expect reliable, available, and secure services. Supporting security becomes an important issue in service-oriented architecture (SOA). This paper describes how to simultaneously support both dynamic security policies and separation of concerns when developing an SOA application. We propose the DPSL (dynamic policy specification language) for managing and controlling the security according to the dynamic behavior of the workflow in SOA. The operation model is compatible with existing SOA standards, such as the WSDL, WS-Policy, WS-Security- Policy, WS-ReliableMessaging, and the BPEL. As a result, existing standard Web-services engines and BPEL engines can be employed directly to support dynamic policies in SOA. The implementation and experimental results demonstrate the feasibility of the proposed architecture.
Security Policy
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Lacking of flexibility was found in previous logistics information systems,and using the technology of web services a practical design workflow and modeling method was proposed based on a thoroughly research and analysis of the service-oriented architecture(SOA) theory.It was discussed to implement the order treatments workflow on the flat of a cross-language and cross-operation system by combination,arrangement and coordination of business process execution language(BPEL).Web services based on SOA for a local logistics information system and for a heterogeneous platform were realized.Because of SOA,the logistics information system is easily browsed on every business platform.SOA accelerates the application developing process and also permits a un-programmer to create and reuse information technology resources.
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The key to establish SOA application is service auto-discovery and composition. Traditional method is static configurable, such as BPEL. But the web services may be not able to satisfy the requirements of time and resource constraint in their later lifecycle. That would produce diffuseness of web service invoking, and furthermore lead to lower availability, configuration efficiency and even application invalidation. In this paper, we present a model for dynamic SOA application construction, and put forward relevant probabilistic algorithm to validate the model's applicability for concurrent and sequential applications respectively.
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It was introduced the method to use Business Process Execution Language (BPEL) to achieve Web service integration for the reason of railway information sharing based on Service Oriented Architecture (SOA) applications.And cited three examples combined with existing Railway Information System such as Freight Invoice System,Cargo Transfer System,Indeed Reported System to explain concrete steps.
Invoice
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Characteristics of SOA-based Virtual Enterprise service integration are analyzed by using SOA and Web Services for Virtual Enterprise Multi-source Heterogeneous system integration. A structural model of SOA-based Virtual Enterprise Multi-source Heterogeneous Service Integration is proposed in this paper and the composition of principle, the method of encapsulating service, and the process of service integration are described in detail. Finally, the model is achieved by using BPEL Language and Oracle BPEL Designer. The result of study shows that the model is effective and correct, and provides the theoretical foundation, the program realization and the specific method for building a stable and efficient Virtual Enterprise and realizing Virtual Enterprises rapid seamless integration among its members.
Enterprise application integration
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Aimed at the existing complex structure of modern logistics information system and a low level of sharing data, etc., in this paper the extension model of SOA has been adopted successfully to realize the integration of logistics information system based on service-oriented system architecture by using the Web Srvices-based WS-BPEL technique.
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Information Sharing
Integrated logistics support
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