Study On The Integrated Systematic Harbor Enterprise Information Application Based On Service-Oriented Architecture (SOA)

After several decades of enterprise information construction, enterprises have been in existence for many scattered isolated application systems,formed information islands between heterogeneous systems.As the business continues to expand the scale, the development of Internet and the implement of various services or products,integration has become the urgent needs of contemporary enterprises.Service-Oriented Architecture(SOA),a new generation of architecture ideology,is applying for distributed software development.SOA has solved the problems of applications for flexibility and interconnectivity wonderfully because of its features of loose coupling,independent of platform,and so on.SOA will be applied widely as an efficient solution for Enterprise Application Integration and new system architecture.Today SOA is one of the most popular topic in computer industry,it will be the dominator of software architecture.Beginning with the present condition of the local harbor enterprise information system,this paper analyses the problem the local harbor enterprise information system faced and the possibility of SOA applied in harbor enterprise.Based on the theory of SOA and Web Service technology,this paper designs model architecture adapting for harbor enterprise application.First of all,this paper started with introduction of theories on SOA and Web Service,including the theoretics of SOA,analysis the model of SOA,the duty and Function of every roles in SOA and discussion of the traits and development future of SOA,and the relationships between SOA and Web Service.Then,this paper lucubrates implementation technology of SOA,mainly including the basis knowledge and protocols and criterions of Web Service:XML, SOAP,WSDL and UDDI,and illuminates the traits of Web Service,such as platform independently,extendible and integration easily.Secondly,following these theories,the paper propose a model for harbor enterprise application development based on SOA combining with classical object-oriented analysis and design method(OOAD)and traditional software architecture upon practice.This model includes four layers:user layer,business layer,service layer and data layer.All the functions of every layer are divided into different services,and then they are composed to the whole functions and business logic through call and combination.This paper also chooses a representative example service in familiar harbor enterprise business cases to analysis and elaborates each degree class service in the SOA platform structure of composition, combination and encapsulation,and building and using of metadata.Finally,making an example of XiaMen HCT ERP,carries out the enterprise application development based on SOA under.NET platform according to the enterprise's characteristics.