[ogsa-d-wg] Discovery Service - Returning Data

[Allen Luniewski]

At today's call, I took on an action to update the discovery service 
section to allow for discovery services that returned the data of interest 
rather than a reference to the data.  Here is the updated material for 
your  consideration:
Resource Discovery
Discovery services are vital to the data architecture.  The data services 
may use the discovery services not just for registering services 
themselves, but also for registering the data sets that are stored by 
those services. This requires languages or ontologies for describing data. 
Discovery services may also register the locations of schema definitions. 
Discovery services may be built upon metadata repositories that contain 
information about other entities in the grid such as resources, and 
services.  Some discovery services may return the name of the service and 
some may return an EPR to the service.  Some discovery services may take a 
description of the desired data as input and return the data itself.


Allen
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