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Scientific workflow (SWF) is considered as a way to automate the decision making with a compilation of known sequences of actions for routine procedure. Current scientific workflow systems lack abilities, in the one hand, in capturing the “context” of the case of the scientific workflow, and, in the other hand, in delivering the real-time assistance to help the user make effective decisions. We propose...
Workflow job is composed of several ordered subtasks which invoke different computing services. These computing services are deployed on geographically distributed servers. Towards Workflow Job Management, how to schedule workflow jobs to achieve high server resource utilization and how to ensure Quality of Service (QoS) pose several challenges. In the paper, an autonomic Performance-Aware Workflow...
Many of large-scale scientific applications executed on present-day Grids, such as bioinformatics and computational chemistry, are expressed as complex workflows. To enhance Grid computing paradigm, Web Service has emerged as the de-facto communication mechanism in Grid environments. However, in heterogeneous and dynamic Grid environments, Web Services of the same type and similar functionalities...
Mobile commerce (M-commerce) is an attractive research area due to its relative novelty, rapid growth, and great potential in business applications. Unfortunately, there are a number of constraints effecting both performance and usability of mobile devices and network bandwidth. In addition, existing M-commerce applications are lack of fully automated business processes and still require significant...
Since numerous large-scale scientific applications executed on grids are expressed as complex scientific workflows, workflow management has appeared as one of the most important service in grid environment in past few years. However, most of the management systems do not fully hide the complexity of the underlying orchestration language. Meanwhile, grid environment is dynamic when each scientist involves...
SWF, short for scientific workflow, has recently emerged as a paradigm for orchestrating large-scale e-Science applications. SWF specification connects workflow designer with workflow engine, which makes it act ass one of the key components in SWF systems. We adopted BPEL as the Gird-based SWF specification because of its potential benefits to promote SWF sharing and reproducibility. However, grid-based...
Scientists are increasingly using scientific workflow environment to manage large data sets and execute experiments on distributed resources. Scientific workflows have become an important mechanism for scientists to combine scientific data management, analysis, simulation, and visualization tasks. However, most of the environments don't fully hide the complexity of the underlying orchestration language...
Scientific workflows are becoming increasingly important as a mechanism for orchestrating distributed resources such as computational devices, data, applications, and scientific instruments on the grid environment. BPEL is generally accepted as a de-facto standard for web-services composition. However, the lack of generic graphical interfaces that abstract the technical details for domain scientists...
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