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We illustrate here a simple but fully operational Web based ComponentWare model - WebFlow at NPAC
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Components are given by Java modules, connected by dataflow channels using visual programming tools
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Object Bus is given by a mesh of Java Web Servers, hosting WebFlow modules via specialized servlets
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Framework is provided by the visual graph editor applet plus domain specific module libraries (HPCC, imaging, collaboratory are examples shown in next 3 foils)
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Ensembles are given by user-developed modules, following the WebFlow API
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