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The thesis proposes a unified vision of business process lifecycle that implement different activities on the business process from defining or discovering to implementing and monitoring. In discovery phase within the unified vision it presents a mec hanisem based on methodologies that fit the reality of the Syrian institutions. The thesis depends on a process modeling approach which scales in different levels of details and clarifies the repeated parts allowing to isolate them and define patterns from them. This patterns are used in the optimization phase whether for improving or reengineering. The unified vision can be applied to automate non-automated institutions, it has been applied to the Directorate of Syrian Custom and its departments. In each department the business processes follow a specific flow that is considered as a pattern which can be applied to the rest of business processes, subprocesses can be isolated and reused repeatedly whenever they’re needed.
Service Oriented Computing (SOC) is changing the way of developing software systems. Each web service has a specific purpose to serve, so it can not satisfy users’ request. In this paper, we propose a Web services composition method based on OWL on tology, and design an automatic system model for services discovery and composition. This method uses domain ontology and WordNet to calculate matching between input and output parameters and uses Category ontology to solve the problem of semantic heterogeneity in web service description. We use services with single input and single output and cost as QoS criteria. This method can enhance the efficiency and accuracy of service composition, and the experiments are used to validate and analyze the proposed system.
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