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The Business Process Modeling Notation (BPMN) is a standard for modeling business processes in the early phases of systems development. Model verification is an important means to guarantee the trustiness of composite services. The verification of model, especially the model with strict time constraints, is a challenge in the field of trust composite services. Whether a model is trustworthy depends...
Cloud computing is commonly characterized as a three-layer architecture including IaaS, PaaS and SaaS, while service oriented approach is widely considered as a promising software development method. In this paper, we report our early experience of moving traditional service oriented software development to the cloud computing environment. Our primary goal is to provide instant development, instant...
Process model improvement is one of the most important challenges to deal with in the field of evolving process-aware information systems. In this paper, we present, PRV, an approach to process model refactoring supporting automatic process model improvement, which enables PAIS to adapt to the varying business requirements. First, a set of change operations preserving soundness is defined to avoid...
Service composition is a promising technique for developing applications especially for those across multiple organizations. The dependability of composite services, however, is difficult to be guaranteed due to the distributed, dynamic and autonomous characteristics of service domains. In this paper, we address this problem by proposing a novel approach-PASCAL (Protocol-based Approach for Web Service...
Service oriented computing provides a novel approach to building new software applications through the reuse of existing services. In this paper, we present SOARWare, a suite of middleware and tools, for software production and running based on Web services technologies. Basically, SOARWare consists of three major components including SOARBase, Service Oriented Software Production Line and Service...
The execution of process-oriented composite services described with BPMN has become a hot research topic. In this paper, we present a decentralized execution engine for BPMN-based composite services, the basic idea of which is to make a BPMN model directly executable without converting to another executable model. An executable BPMN model named BPD is first defined. Second, a set of algorithms are...
SOA has emerged as a new methodology for software development and system integration through composing existing web services. The basic idea of SOA bootstrap testing is to test and evaluate SOA middleware and applications by using existing SOA infrastructures. In this paper, we present a toolkit, named SOArMetrics, is proposed to enable the SOA bootstrap testing based on our existing SOA middleware,...
Development efficiency is an important factor for the Internet-scale software produced through services composition. In this paper, we aim at improving development efficiency from two aspects. One is to improve services discovery efficiency through recommendation, and the other is to provide a mechanism to reuse an existing composite service. We propose BestRec, a behavior similarity based approach...
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