Initial survey of use cases for a discovery/location service for interaction/collaboration metadata retrieval.

In the attached document,  I have provided some “use cases” that make use of defined (and implemented) capabilities of the DNS in order to find out about a person or organization’s  interaction/collaboration capabilities (including endpoint  information).

The use cases are annotated with hints about how the Dynamic Delegation Discovery Service [DDDS

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Dynamic Delegation Discovery Service, whose core parts are specified in five RFCs 3401 through 3405] could be used in building a DDDS application  -- the sequence of processing steps involved when using several DNS queries to produce a desired discovery result.

Defining a (reasonably simple but complete)

DDDS application allows us to generalize the discovery/location aspects of PEPPOL to apply to a much wider range of interactions, and to support a much wider range of security options.

Specific DDDS applications are found in VOIP, SIP, ONS, FONS and several other specifications.

Also I have included a brief terminology section that we can add to the wiki. More additions will be needed.
Attachment:
Metadata Service Location using DDDS facilities.docx
Description:  Metadata Service Location using DDDS facilities.docx