1      Definition

Data representing a Contract expressed  in a Program that is activated by an external entity, e.g., a User, or another activated Contract.

2      Functional Requirements

  • The logic of the Program may be based on an Ontology or Semantic Web.
  • The Data of a Contract has a format enabling it to be executed in the target M-Instance.
  • A Contract may be subject to certification before it can be imported into an M-Instance.
  • Certification may be carried out by or on behalf of the M-Instance Manager.

3      Syntax

 https://schemas.mpai.community/MMM4/V1.0/data/Contract.json

4      Semantics

Label Size Description
Header N1 Bytes Contract header
– Standard 9 Bytes The characters “MMM-CTR-V”
– Version N2 Bytes Major version – 1 or 2 Bytes
– Dot-separator 1 Byte The character “.”
– Subversion N3 Bytes Minor version – 1 or 2 Bytes
M-InstanceID N4 Bytes Identifier of M-Instance.
ContractID N5 Bytes Identifier of Contract.
ContractFormatID N6 Bytes ID of Contract Format.
ContractPayload N7 Bytes The set of Contract Data
– ContractLength N8 Bytes Number of Bytes composing the Contract.
– ContractDataURI N9 Bytes Where Contract Data is found.
– ContractData N10 Bytes the Data of the Contract.
DescrMetadata N10 Bytes Descriptive Metadata

5        Data Formats

MPAI expects that MMM Contracts will be developed by independent entities and carry a Contract-specific Contract FormatID. Reference to the future Data Types, Formats, and Attributes will be used as the basis for a Register of Contract Data Formats.

6        Request to Respondents

Respondents are requested to:

  1. Comment on the Functional Requirements and JSON Syntax and Semantics of Contract.
  2. Comment on the role of future Data Types, Formats, and Attributes as support for a Register of Contract Data Formats.
  3. Suggest how such a Register should be operated.
  4. Propose an initial list of Contract Formats.