This trail represents a significant proposed revision and enhancement of the SysML metamodel/profile for representation of physical and industrial quantities with a stated/measured value relative to a unit, within a given quantity and dimension system.
The proposal combines:
- experience modelling real-world systems - such as scientific instruments with known physical parameters and enginering data. - with SysML1.0
- experience with the MD SysML Plugin tool, including conformance analysis and collaboration with the MD SysML Plugin team
- customer feedback on difficulties employing the Unit, Dimension, ValueType approach of SysML1.0
- formal issues submitted to the OMG SysML1.0 RTF, especially prior to the OMG Technical Meeting, 10-14 Mar 2008, Washington DC
- discussions from the SysMLRTF sessions of the OMG Technical Meeting, 10-14 Mar 2008, Washington DC
- detailed analysis of the sample problems and diagrams of the SysML1.0 specification
- consideration of the need to support efficient assignment of value states for complex assemblies
- a detailed parsing and analysis of the following authoritative metrology reference into an illustrative UML profile:
International Vocabulary of Metrology – Basic and General Concepts and Associated Terms (VIM) 3rd edition
Visitors please note well:
- In order to understand the justifications and rationales for this proposed SysML Quantity metamodel you SHOULD examine, in turn, every page of the UML Parsing Analysis of VIM.
- Concepts introduced specifically for the SysML Quantity metamodel proposal (which find no equivalent in the VIM reference) are at the top-level of this trail, not within the UML Parsing Analysis of VIM. Examples include:
- Pages marked with [brackets] represent either incubating pages, or concepts that have not yet been mapped to this SysML Quantity metamodel proposal.