Download in this document - VSD

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Mass as Measured : This is the mass of the element according to some
measurement.
Maturity Level : level of maturity of the element as defined in ECSS-E-HB-10_02A
(table 5-1)
Margin Policy : This property is defined only once at system level. It is in fact
composed of four properties packed together in a category called “System” and it
defines the margin that must be applied to each element according to its maturity
level.
Figure 3: maturity levels 4.1.2.2 Where to store the properties
As the VSD models are organized in a multi-layer architecture, I also had to define to which
layer each of the mass related concepts should be attached. This was done based on the
analysis of the modeling process that is depicted in the next section.
Property
Allocated Mass
Allocation Margin
Maturity Level
Mass as Specified
Contained by
ElementOccurrence
ElementOccurrence
ElementOccurrence
ElementDefinition/ ElementUsage
Mass from CAD
Mass as Measured
Margin Policy
ElementOccurrence
ElementRealisation
Top level ElementOccurence, contained by
Category “System”
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