SMM — Add measurandQuery Operation to MeasureRelationship

Summary:
The Measure class, through its related scope class, provides support for specifying the class of the measure, but it limited the scope of refinements to be based on containment relations. This new measurandQuery operation removes this limitation.

Discussion:
In the original design of the SMM spec, the definition of the refinement relation was not clearly defined or elaborated. This under specification would either lead to non-executable models that could use any refinement relation that they wish, or for executable models being forced to only support and understand containment refinement relations.
The purpose of the measurandQuery is to allow models to be able to correctly specify the exact refinement relation, when this relation is not the default containment relation. It thus provide for an alternative way of adequately specifying the relation used to retrieve the appropriate measurands.

Summary of change:
· Add named relation measurandQuery[0..1] form MeasureRelationship to Operation

• Add named relation measurandQuery[0..1] from MeasureRelationship to Operation