====== GPR-002 — XMI Representation of Non-OMG-Language Models ======

[[public:00-sip-ra:99-annexes:annex-c-requirements:start|Go to Annex C: Requirements]]

===== Statement =====

A Submitter using a non-OMG modeling language SHOULD make a best effort to include a machine-readable [[https://www.omg.org/spec/XMI/|OMG XML Metadata Interchange (XMI)]] representation of the models.

===== Requirement Level =====

Recommended

===== Rationale =====

An XMI representation may improve model accessibility, interchange, comparison, and evaluation even when the original model is expressed using a non-OMG modeling language.

Some non-OMG modeling languages may not have a complete or direct mapping to an XMI-compatible metamodel. The `SHOULD` obligation recognizes this limitation while asking Submitters to make a reasonable effort to provide an interoperable machine-readable representation.

===== Evaluation Criteria =====

A Submission addressing this recommendation demonstrates that:

  - Each model expressed using a non-OMG modeling language is identified
  - The feasibility of providing an XMI representation is considered
  - An XMI representation is supplied when a practical mapping is available
  - The source modeling-language version is identified
  - The applicable XMI version is identified
  - Mapping rules or transformations used to produce the XMI representation are described
  - Information lost, altered, or approximated during transformation is identified
  - Required metamodels, schemas, profiles, libraries, or dependencies are supplied or referenced
  - If an XMI representation is not supplied, the technical reason is documented
  - Any alternative machine-readable representation is identified

===== Referenced By =====

{{backlinks>public:00-sip-ra:99-annexes:annex-c-requirements:gpr-002-xmi-representation-of-non-omg-language-models}}

===== Notes for Editors =====

This is a recommended requirement. A Submitter may depart from a `SHOULD` provision when a valid reason exists, but the Submission should document that reason and describe any resulting limitations.

This requirement does not imply that every non-OMG modeling language can be represented completely or losslessly using XMI.

Use the following syntax to include the authoritative Statement on another wiki page:

<code dokuwiki>
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