Net Web Services Technology To The Enterprise Application Integration

With the increasing desire for real-time information by customers and business copartners, in order to satisfy the need of customers by increasing output and improving efficiency, the companies have to combine their heterogenous systems and transmit their application to the Web. It is too complex to complete Enterprise Application Integration (EAI) "among enterprise applications. The most of traditional EAI are based on distributed computing. When the enterprise applications transmit to the Web, the distributed computing occurs the huge obstacle. So we need a new technology to make EAI to transmit to the Web smoothly. With the occurrence of XML, it completely enables the data representation and exchange between the heterogenous platforms. On the base of XML technology, IBM and Microsoft established a new Internet-based access protocol named as Simple Object Access Protocol (SOAP). XML and SOAP led to Web services born.Web services is a kind of reused component in the internet. It can be invoked from the Web. Web services is neither EAI nor a part of EAI, but it can make EAI easier to implement. When we implement EAI with Web services, the question is how to find and locate a Web services after all kinds of models inside enterprise application encapsulated as Web services.Universal Description Discovery and Integration (UDDI) Specification was advanced by IBM, Microsoft and Ariba at September 2000. It resolves the question of finding and locating Web services. Just like CORBA's Trader and Internet's DNS, a Web services registry center can be established based on the UDDI Specification so the enterprises can publish their Web services and search the Web services they needed.After studied the UDDI Specification deeply, the author want to establish a Web services registry center. After analyses the data structure and contact model the author build up its function models and interfaces. A Web services registry center is realized with ASP.NET and C# through Web services. The center provides some kinds of interfaces and programmer APIs to second development so the enterprises can make it easy to search and publish Web services. It shows that the registry center is validthrough the successfully invoked by client program.