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An Item is a Data Type specified by MMM-TEC or other MPAI Technical Specifications for use in an M-Instance. All Items used by MMM-TEC V2.0 are listed in Table 1.

An Item may be produced:

  1. By the activity of a Process, e.g., by sensing Media and producing Data, Qualifier, and Rights from the Universe.
  2. As a result of a request made by a human through a Process of that human or directly to the M-Instance.

MMM-TEC V2.0 specifies or references from other MPAI Technical Specifications a large number of Items. The specification of each Item includes Definition,  Functional Requirements, JSON Schema and Semantics.

An Item may optionally include:

  1. Data Qualifier signalling the relevant characteristics or technologies of a Data Type.
  2. Rights that are exercised by certain Processes on an Item at certain M- or U-Locations and at certain Times.
General Basic Certificate Certificate Contract Identifier
M-Capabilities M-Environment M-Instance Program
Rights Rules U-Environment
Human&User Account Activity Data Personal Profile Personal Data
Process Interaction IPP Message Message P-Capabilities Process Action
  Resolution
Service Access Authentication Basic Discovery Basic Information Basic Interpretation
Discovery Information Interpretation Validation
Finance Asset Currency Provenance Transaction
Value Wallet
Perception Basic Object Basic Scene Descriptors Basic Scene Geometry Event Descriptors
Object Scene Descriptors Scene Geometry Summary
Internal State Cognitive State Emotion Personal Status Social Attitude
Space&Time Basic M-Location Basic U-Location M-Location Orientation
Point of View Position Space-Time Spatial Attitude
Time U-Location Universe-Metaverse Map

The Table above includes Media-independent Object, Scene, Geometry, and Event. MMM-TEC V2.0 references their MPAI-OSD V1.3 specified Media-dependent Object, Scene, Geometry, and Event.

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