Part 25 EXPRESS/UML

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Part 25 EXPRESS/UML

• David Price
• June 2005 Valencia SC4 Meetings

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Agenda

• Why?
• current activities and plans with respect to
  EXPRESS/UML
• How?
• Overview of metamodel of the EXPRESS language
• Issues on metamodel
• Next steps

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Why?

• Part 25 Edition 1 EXPRESS-to-UML 1.5 supported
  UML tooling use by implementations
• Plan was to create enable EXPRESS modelling using
  UML tools by defining a UML Profile of EXPRESS
  in Part 25 Edition 2
• New OMG standards have emerged
• UML 2 and MOF 2
• Model Driven Architecture
• Ontology Definition Metamodel
• Plans have changed

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Some OMG background

• MOF is Meta-Object Facility
• A model for describing modeling languages
• There is a MOF model of UML
• A set of APIs for a repository of models
• MDA is Model Driven Architecture
• Very similar to STEP ARM/Mapping/AIM ideas
• Everything depends on there being a MOF model of
  the languages being used
• QVT is QueryViewTransform
• The in-process OMG standard roughly equivalent to
  STEP mapping tables and/or EXPRESS-X

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Some OMG background (2)

• ODM Ontology Definition Metamodel
• MOF model and mapping between
• OWL
• RDF Schema
• ISO 24707 Common Logic
• Topic Maps
• Entity-Relationship

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Metamodel Overview

• Overview being delivered
• at ISO SC4 Valencia by David Price
• At OMG Boston next week by Ed Barkmeyer

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Subset of interest to SC4 Community

• Issue log 2005-06-09

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Related Results

• Creating the metamodel resulted in detailed
  review of Part 11 by Ed Barkmeyer and a series of
  SEDS issues being raised
• WG11 exploder discussions on-going
• Allison Feeney will be editor of Part 11 TC
• also editing the metamodel working closely with
  Ed at NIST

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Next steps of interest to SC4

• Publish draft for comment
• UML/HTML documentation published on Web
• Typical 30 day review period announced on WG11
  exploder
• Resolve issues
• Test via prototype implementation and test
  populations
• Publish Draft from upon which OMG standard will
  be based