The Research Of Information System Integration In Virtual Enterprise Based On CORBA

Internet which is developing with a splitting speed is changing the style of information transfer, and is also changing the style of organizing management in enterprise at the same time.As a result, new manufacturing model such as agile manufacture(AM) and virtual manufacture(VM) come into being .A important means for agile manufacture and agile competition is to implement virtual enterprise by means of agile virtual enterprise.The major task for this dissertation is to study the problem of information integration between virtual enterprise.A lot of information system in enterprise is designed based on CORBA. CORBA provides a mechanism of " software bus". In theory, any applicable system can be integrated into CORBA system if it warp up the whole package according to the regulation of CORBA.In real application, it is not difficult to integrate existing applicable program into CORBA. However, due to the disunity of CORBA product and database system, integrating different information from different enterprise seems difficult.Aiming at above actual problem, this dissertation provide that integrating information resource based on CORBA, and study it from two individual aspects-CORBA broker and database integration base on CORBA.As to the problem of CORBA broker integrating, based on GIOP protocol, some related theories is used to study the interoperation between heterogeneous ORB,and this provides theoretic basis for information resource integration of enterprise. About the heterogeneous database integration, it is suggested to set up a CORBA-based globe database view, packing into unattached CORBA object every table in the heterogeneous database using "accessing broker" program, and provide a uniform interface. And then, through the self-defined Globe-SQL, broker manipulate SQL so as to control every table in database.