• The Journal of Society for e-Business Studies
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• v.2 no.1
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• pp.117-129
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• 1997

As the lifecycle of a product becomes shorter, the communication between a contractor and a supplier in product information has got more importance. The CITIS(Contractor Integrated Technical Information Service) is required to provide authorized users with access to both data and applications they need to complete a task for contract. With the growth of WWW, there has been much study for the use of WWW for the implementation of CALS. The WWW has been proved as an efficient tool for CALS implementation due to its of publicity, openness, and free accessibility. In this study, we suggest using WWW tools, here, an intranet tool, as a basis for the implementation of CITIS

• Proceedings of the CALSEC Conference
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• 1998.10a
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• pp.95-104
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• 1998

Nowadays, document management system is used to share the information using intranet in some enterprises. But for enterprise that is to share information with other enterprises, a simple information sharing environment like homepage or email is used. The goal of CALS is to increase productivity through rapid exchange of shared information between enterprises. CITIS is a software infrastructure in CALS and service standard to share the CALS data among business organizations. CITIS can be used as a software infrastructure for constructing virtual enterprise in the internet. In this paper, we design and implement CITIS prototype on the internet. Java is selected as an implementation language fer its portability and web-based characteristics. CORBA is an communication middleware for distributed objects.

• Proceedings of the CALSEC Conference
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• 1999.07b
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• pp.587-596
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• 1999

In this paper, we introduce the design and development of a web-based workflow management system. The goal of the developed system is to manage business processes occurring in the CITIS (Contractor Integrated Technical Information Services) environment. The system is composed of three main modules: Process Designer, Workflow Engine, and Client modules. The Process Designer is a module that provides the environment for the build-time function, which generates the specifications of processes. The module presents the capability of defining nested process models, which is powerful in particular for designing complex processes. Since the other two modules are implemented using pure Java technology, the Workflow Engine can be implemented on any platform and the Client programs can be accessed via the WWW interface. This indicates that there is no need to install any client programs at the client-sides. Users who has a connection to the internet with web browsers, such as Internet Explorer and Netscape Navigator, and has a proper right of access can utilize the normal client, monitoring client, and system administration client programs. Communications between the workflow engine and the clients are implemented using the java servlet mechanism. The workflow system can serve as the underlying platform of process management tool in CALS and CITIS environments. An example scenario of using the system is presented.