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Application Descriptor (XML)
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WebFlow Service:
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XML Parser
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Client (Java Applet)
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Select Application
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Select Host
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Select, Edit, Upload Input Files
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Submit
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View Results
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WebFlow Service:
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File Services
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WebFlow Service:
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Job Service
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Back-End Compute Server
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Middle Tier (User Context)
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1
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2
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3
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6
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5
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4
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1. Generate Application Front End from XML specification
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2. Use WebFlow to move files between hosts 3. Generate Task Descr. 4. Use Task Descriptor and XML Appl. Descr. to generate RSL 5. Submit job through GRAM (+GASS). Save job info in the
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User Context. Poll status of the job 6. Move output files back to the client and launch visualizer
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