| Enterprise informatization has become a key tool for small and medium enterprises to make themselves more competitive, and is the trend of enterprise management development too. However, most of small and medium enterprises need tools to reach information management urgently, because they are still located at low level of informatization who manage themselves by hand. The business platform based on SaaS provides a flexible, sustainable development IT platform for enterprise operation which changes traditional buying patterns to tenancy model. Nowadays, enterprises support the highly flexible business strategy by paying attention to the component of business model. The SOA framework which can create a more flexible enterprise infrastructure is favored, because the existing enterprise software framework is not flexible enough to accommodate increasingly complex business integration. SOA makes enterprises response to the requirement of market and customer more fleetly by achieving and optimizing business processes preferably.First, this paper introduces SaaS model and SOA's concept, features, hierarcy, design patterns, etc; then discusses the Web Services technology and the realization of SOA on J2EE platform; after that introduces the current popular open-source products. Then this paper explicates the main function modules of business platform. On this basis, this paper constructs integrated system architecture of business platform: H-ARC subsystem;L-ARC subsystem;BSR subsystem;Portal subsystem;WW-ESB, and explains the functions of the subsystems.And then,this paper organizes technical architecture by open-source tools on J2EE.Arround the integrated system architecture the paper explains the implementation of BSR subsystem: the modes used in BSR,WSDL document of users login interface, and the configuration file of ESB.The test results confirm that we construct enterprise informatization platform by SaaS+SOA is feasible. This paper has some innovations and is of practical use. |
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