NASA ACCESS09: Tools and Methods for Finding and Accessing Air Quality Data

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Outline

Problem

• Lots of data resources in NASA, elsewhere
• Not available as data as services
• if it is a service, e.g. openDaP, may need rich clients, hard coded, loose coupling not easy
• Even if reusable service is available it cannot be found.

• The Users Dilemma (direct problem)
  • There are no data for what the user needs
  • If there are needed data, the user can not find them
  • If the user can find them, she can not access them
  • If the user can access then, she does not know how good they are
  • If he knows how good they are, she can not merge them with other data.

• Providers Dilemma (indirect problem)
  • There are no users for the data
  • If there are users, the provider can not find them
  • If she can find the users, she does not know how to deliver the data
  • If she can deliver them, she does not know how to make it more valuable
  • If the she can make it more valuable...

Solution

• Service Orientation, while accepted has not been widely adapted for serving NASA products
• SOA allows the creation of loosely coupled, agile, data systems
• SOA -> requires ability to Publish, Find, Bind (Register, Discover, Access)
• While, binding to data through standard data access protocols, publishing and finding requires metadata system

• Metadata system for publishing and finding content has to be jointly developed between data providers and users.
• Generic catalog systems - metadata collection of not only what provider has done but also tracking what users need
• Communication along the value chain, in both direction;
• Metadata the glue and the message
• Market approach; many providers; many users; may products