Gateway Building Blocks: JWORB WebFlow on GLOBUS

• Client (Tier 1): Java Graph Editor for Webflow linked to interpreted debugger (DARP), Java Visualizer SciVis

  • In four tier model, these Java tools would run on Java Web Server with pure HTML client

• Middle Tier 2: Network of Pragmatic Object Web JWORB or Java Servers running on Gateway Tier linking to CORBA COM and HTTP(Internet)

  • Java Servlet wraps non Java Application (Apache Java Server) or CORBA handles any language

• Back-end Tier 3: Simple MPI or Globus (or similar) where available and where necessary

• Next foils show

  • Pure Gateway Tier: WebFlow system with simple Java Image filters
  • Customized “database” solution for NCSA Alliance Grand Challenge in Quantum Monte Carlo

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