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1 Definition 2 Functional Requirements 3 Syntax 4 Semantics

1 Definition

The Action of a User requesting an Information Service to:

  1. Provide information on Items or Processes congruent with a Discovery Request Item.
  2. Grant Rights to the Discovery Response Item based on requested Rights (Status=Model).

If the request is accepted, the Information Service responds with a Discover Response Item and Rights (Status=Final) to the Discover Response Item.

2 Functional Requirements

  1. User sends Discover PA Request including Discovery and Rights (Status=Model) to Information Service.
    1. If Service is a free service, goto Discover.
    2. If Discover is a pay service,
      1. User sends Discover PA Request with Service Pricing Model (Status=Model) to Information.
      2. Information sends Discovery PA Response:
        1. If Discover PA Response includes Status=Err, goto End
        2. If Discover PA Response includes Status=Ack and Service Pricing Model including Transaction (both Status=Model), User:
          1. Transacts Value contained in Transaction.
          2. Sends Discover PA Request with Service Pricing Model (Status=Model) including Transaction (Status=Final) to Information.
  2. Discover: Information
    1. Produces the requested Data.
    2. Identifies Item including the Data with Qualifier and Rights (Status=Final) as Discovery Response.
    3. Sends to User a Discover PA Response including:
      1. Discovery and Rights (Status=Final).
      2. Service Pricing Model (Status=Final) if Discovery is a pay service.
  3. End.

3 Syntax

https://schemas.mpai.community/MMM4/V2.2/actions/DiscoverPA.json

4 Semantics

Label Description
Header Discover Process Action Header – Standard “MMM-DSP-Vx.y”
MInstanceID Identifier of M-Instance.
MEnvironmentID Identifier of M-Environment.
DiscoverPAData Data included in the Discover Process Action.
– Time Time of PA request emission and Time of PA request execution.
– RQ-Complements Complements in PA Tequest.
  – With Discovery Discovery Request Item.
  – With Rights
 Requested Rights (Status-Model) to the Discovery Response Item.
  – With SPM Service Pricing Model (Status=Model) if Discover is a pay service.
– RS-Complements Complements in PA Response.
  – With Discovery Discovery Response Item.
  – With Rights Rights (Status=Final) based on requested Rights if PA Request is accepted.
  – With PAStatus Status of PA Request.
    – Ack If PA Request was performed.
    – Err If PA Request was not performed.
      – FaultyPA Faulty PA Request.
      – IncID Incorrect ID.
      – MLocOOR M-Location out of range.
      – InsRights Insufficient Rights.
      – InsValue Insufficient Value in Wallet.
Trace Authentication provenance information and time of PA production.
 DescMetadata Descriptive Metadata.

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