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sysml-qudv:quantities_units_dimensions_values_qudv

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Quantities, Units, Dimensions, Values (QUDV)

A working group of the SysML 1.2 Revision Task Force (RTF) has completed a proposed conceptual model for Quantities, Units, Dimensions, Values (QUDV) to define systems of units and quantities for use in system models. This page is being maintained to coordinate with other groups and projects looking at similar topics.

QUDV Resources

If accepted as part of the SysML 1.2 RTF revision process, a new non-normative Annex C.5, specifying the QUDV Conceptual Model, will be added to the Version 1.2 update of the SysML specification. This draft Annex is being made available here for any anyone who may find it useful or who can provide feedback:

Model Library for Quantities, Units, Dimensions and Values (QUDV)
annex_c.5_2009-07-27.pdf

Additional material, including UML serializations of the QUDV model and further examples, is expected to be added in this section.

Links

This work is based on concepts of the International Vocabulary of Metrology (VIM), which may be obtained at the following link:

International Vocabulary of Metrology (VIM) 3rd edition 2008
http://www.bipm.org/en/publications/guides/vim.html

The current version of the SysML specification is 1.1, which is available at the following link:

OMG Systems Modeling Language (OMG SysML) Version 1.1
http://www.omg.org/spec/SysML/1.1/



Ontolog Community links:

Ontolog Panel Discussion: Towards A Quantities and Units of Measure Ontology-based Standard - Fri 19-Jun-2009
http://ontolog.cim3.net/cgi-bin/wiki.pl?ConferenceCall_2009_06_19

From the link:
During the OntologySummit2009_Symposium, the “Quantities and Units of Measure” was identified as a candidate ontology-based standard that folks from the standards community and the ontology community can (and should) work together on. Further momentum has been developing through the active discussion among the community members on this matter in the [ontology-summit] mailing list, prompting us to put this session together.

Communiqué: Toward Ontology-based Standards
http://ontolog.cim3.net/cgi-bin/wiki.pl?OntologySummit2009_Communique

From the link:
The joint communities of ontologists and standards developers represented at this year's summit hereby endorse the application of ontology science and engineering to standards. Some good examples of this kind of approach are illustrated by the following list of concrete, near-term projects.
• A harmonized ontology of units and dimensions

uom-ontology-std Mailing List Announcement:

I take pleasure in announcing that this [uom-ontology-std] mailing list, as well as the other workspaces for the Quantity and Unit of Measure Ontology-based Standard initiative is now online.

Please start making use of this to move this initiative forward. If there are other individuals you can think of that will be interested to join us in this effort, please alert them and invite them to subscribe to this mailing list (by sending a blank email to uom-ontology-std@ontolog.cim3.net).

sysml-qudv/quantities_units_dimensions_values_qudv.1248962537.txt.gz · Last modified: 2009-07-30 10:02 by rburkhart