The patent's inventors are Liu,
This patent was filed on
From the background information supplied by the inventors, news correspondents obtained the following quote: "Service-Oriented Architecture (SOA) is a software system architecture that is realized by connecting independent functional entities capable of completing specific tasks to meet requirements of business integration in an Internet environment. In other words, the SOA is a component model that links different function units (called services) of an application through interfaces and contracts properly defined among these services, wherein the definition of the interfaces is independent from the hardware platform, operating system and programming language for realizing services. The SOA uses the service-oriental modeling technique and WEB service technique to accomplish loose coupling between systems and thus realize integration and cooperation between the systems.
"The SOA policy is an important component of the SOA system and is used for declarative description and execution of the SOA system behavior. In the SOA system, the usage of the SOA policy spans different phases across the SOA lifecycle, including design time validation, deployment time policy publication and package and runtime service selection, change management and impact analysis.
"Generally, the SOA policy can be classified into the following types in different layers: Business policy for business decision making and industry guideline compliance, etc. Application policy for service selection during service invocation, etc. Governance policy for enforcing rules for standards compliance, and defining system behaviors for governance process, etc.
"A main feature of SOA is that all the data and contexts are described in XML language, and a document containing such data and the contexts is called a SOA metadata document. Generally, the SOA metadata document can include: a service metadata document for describing content relating to a service, a runtime information document for describing content relating to the runtime information, and a document for describing other business content. For example, the service metadata document may use Web Service Description Language (WSDL), XML Schema Definition (XSD), Web Service Policy (WS-Policy), Service Component Definition Language (SCDL), Business Process Execution Language (BPEL), Service Component Architecture (SCA) policy, etc. The runtime information document may use Simple Object Access Protocol (SOAP), Representational State Transfer (REST), etc. The document for describing other business contents may use Service Data Object (SDO), Web Ontology Language (OWL), etc.
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