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Transformational approaches to generating design and implementation models from requirements can bring effectiveness and quality to software development. In this paper we present a framework and associated techniques to generate the process model of a service composition from a set of temporal business rules. Dedicated techniques including path-finding,(More)
The ability to deliver different performance levels based on tenant-specific service level agreements (SLAs) is a key requirement for multi-tenant internet applications. However, workload variations and extensive resource sharing among tenants make this goal hard to achieve. We address the issue with a performance regulator based on feedback-control. The(More)
The paper presents a service composition language called VINCA, which differs from many existing ones in its emphasis on enabling business users to visually “program” from business view-point their personalized applications on the basis of Web-based services. VINCA embodies an integrated approach to mediating between diverse, rapidly changing user(More)
Interoperability has been regarded as a major issue in implementing e-Government systems. In this paper, a service grid based framework for the interoperability – eGovGrid, is proposed, which facilitates “horizontal” resource sharing and interoperability among “vertical” e-Government subsystems. Key concepts and technologies include an ontology-based(More)