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(Informative)

Despite being undefine and loose, many consider the “metaverse” concept as one of the most promising evolutionary steps of Information and Communication Technology. Indeed, a significant number of implementations that can be classified as “metaverse” have been developed. Unfortunately, metaverse designers and developers have generally made technology decisions that best responded to their vision and needs, with little o no consideration of the the primary requirements of a communication system to interoperate with other instances.

In response to concerns that such metaverse “walled gardens” do not fully exploit the opportunities offered by current and expected technologies, MPAI has published Technical Reports and developed Technical Specifications that provide exactly that functionality:

  1. Technical Report: MPAI Metaverse Model (MPAI-MMM) – Functionalities (MMM-FNC) V1.0 introduces definitions, assumptions, a set of high-level use cases, a collection of exemplary service providers, a set of ~150 functionalities that a metaverse instance might support, a review of the main metaverse-enabling technologies, an analysis of metaverse governance issues, and a standardisation roadmap.
  2. Technical Report: MPAI Metaverse Model (MPAI-MMM) – Functionality Profiles (MMM-FPR) V1.0 revises an extended list of definitions; introduces a metaverse “Operation Model” based on the notion of Processes performing or requesting other Processes to perform Actions on Items, i.e., Data, Metadata, and Qualifiers supported by an M-Instance, and the type of metaverse to be specified by MPAI; an initial identification of Actions, Items, and Basic Data with Use Cases and Functionality Profiles; a collection of representative use cases tested against the Operation Model; and four initial Functionality Profiles.
  3. Technical Specification – MPAI Metaverse Model (MPAI-MMM) – Architecture (MMM-ARC) V1.1 specifies the Functional Requirements of Processes and Actions providing the means to achieve Interoperability between two or more independently designed M-Instances executing Processes, and producing Data that comply with the MMM-ARC Functional Requirements, if necessary via a Conversion Service.
  4. Technical Specification – MPAI Metaverse Model (MPAI-MMM) – Technologies (MMM-TEC) V1.0 specifies or references specifications of Items including Qualifiers that enable interoperability between M-Instances supporting the technologies referenced by the Qualifiers.

This document – Technical Specification – MPAI Metaverse Model (MPAI-MMM) – Technologies (MMM-TEC) V2.1 – is the latest version of the MMM-TEC standard. It provides an integrated metaverse specification enabling interoperability of Processes, Items, Process Actions, and Protocols between metaverse instances (M-Instance) and between M-Instances and clients.

In all Chapters and Sections, Terms beginning with a capital letter are defined in Table 1. All MPAI-defined Terms are accessible online. All Chapters are Normative unless they are labelled as Informative.

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