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The Application of Defeasible Logic in Workflow Management System
With popularization of the network, there are more and more application programs which are changed to exist in the service way. This may not only reduce the cost of local host, but has to speed up integration and reuse characteristics. Service Oriented Architecture (SOA) is produced for this type of demand. In recent years the related technologies continued the vigorous development, not only the hardware aspect potency promotion, but also many progresses of software, such as the architecture of XML platform, protocol of web server engine ,the standard of SOAP message and so on, they are all put into quite many academic researches and practical tests. It's worth noting that the technology of management work flow system still remains in the directed graph stage. This stems from initially the computer only had batch processing. However, the technological progress changes every day at present, both parallel operation and multiple processing are already the basic functions of computer system. Facing the changes, we cannot but think about the directed graph work flow is really can handle each kind of demand of network service or not. This paper is mainly aims at this question to conduct the research. We tried to give an example to explain the use of directed graphs to handle a similar situation is quite complex. When we tried to solve this problem from the logical point of view, we found the judgment way between defeasible logical system and general program is different, so we tried to move this direction to explore. After all, defeasible logic is simply the number of systems theory, it is not easy to apply to work processes on fact, so we devised a new system architecture which mainly through proxy program to aid the inference of logical system and this is to ensure the accuracy of process-oriented. Through the implementation of the results, we found we cannot only simulate general work flow successfully, but also most explicit data demonstrated this way in the majority of flow systems were quite effective.
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