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Mass Roll-up Example: MassRollup.sysml

Gallery
Tutorial
TRAIL: The SysML-v2-Pilot-Implementation GitHub samples in Cameo by Webel
Section
examples
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Topic level
ESSENTIAL
Keywords
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Modelling and style
Webel: SysMLv2: Cameo: Modelling Best Practice: For non-structured features prefer compartment views with feature values over symbols UNLESS you need to show relationships from feature symbols OR have special reasons (such as educational illustration).
Webel: SysMLv2: Cameo: TIP: You can move parameter symbols (the little boxes with arrows) around the boundary of their owner's symbol to save space and improve readability. Parameters displayed on the left (default Cameo layout) take up a lot of space.
Webel Best Practice: SysMLv2: Cameo: TIP: Show EITHER a specialization relationship from a symbol OR show the specialization in the symbol header using Display Styles -> Show Specialization. Prefer NOT show both modes in one View.
Webel SysMv2 modelling convention for tutorials and training. Metaclasses and elements from the KerML and SysMLv2 machinery are white on black or white on strong "darker" colours (blue, magenta, purple etc.) to distinguish them from user model elements

Explanation of the ? select expression construct in filteredMassThing:

KerML1.0: 'A select expression consists of a primary expression and an expression body ... separated by a dot-question-mark (.?) symbol. The expression body must have a single input parameter and a Boolean result. The expression body is evaluated on each of the result values from the primary expression, in order, and those for which the expression body evaluates to true are selected for inclusion in the result of the select expression (that is, a select expression (that is, a select expression is a shorthand for invoking the ControlFunctions::select function).'

Presumably filteredMassThing it is later specialized to provide a value for the abstract MinMass.

Up next
Mass Roll-up Example: Vehicles.sysml
Notes
[DISPLAY, MODELLING, TIP, TOOL]{OPTION} Webel: SysMLv2: Cameo: TIP: You can move parameter symbols (the little boxes with arrows) around the boundary of their owner's symbol to save space and improve readability. Parameters displayed on the left (default Cameo layout) take up a lot of space.
[MODELLING, PATTERN, TIP, TOOL]{RECOMMENDED} Webel: SysMLv2: Cameo: Modelling Best Practice: Adopt a tight packing strategy leveraging the Cameo grid (but DO NOT obscure the ends of relationship arrow symbols).
[DISPLAY, MODELLING, TIP, TOOL]{RECOMMENDED} Webel Best Practice: SysMLv2: Cameo: TIP: Show EITHER a specialization relationship from a symbol OR show the specialization in the symbol header using Display Styles -> Show Specialization. Prefer NOT show both modes in one View.
[DISPLAY, MODELLING, TIP, TOOL]{RECOMMENDED} Webel: SysMLv2: Cameo: Modelling Best Practice: For non-structured features prefer compartment views with feature values over symbols UNLESS you need to show relationships from feature symbols OR have special reasons (such as educational illustration).
[CONVENTION, DISPLAY, MODELLING, STYLE]{OPTION} Webel SysMv2 modelling convention for tutorials and training. Metaclasses and elements from the KerML and SysMLv2 machinery are white on black or white on strong "darker" colours (blue, magenta, purple etc.) to distinguish them from user model elements
Snippets (quotes/extracts)
  [SysMLv2] A select expression consists of a primary expression and an expression body ... separated by a dot-question-mark (.?) symbol. The expression body must have a single input parameter and a Boolean result.
  [SysMLv2] The expression body is evaluated on each of the result values from the primary expression, in order, and those for which the expression body evaluates to true are selected for inclusion in the result of the select expression (that is, a select expression
  [SysMLv2] (that is, a select expression is a shorthand for invoking the ControlFunctions::select function).
Related slides (includes other tutorials)
Mass Roll-up Example: MassConstraintExample.sysml
Mass Roll-up Example: Vehicles.sysml
Related slides (backlinks, includes other tutorials)
Visit also
Visit also (backlinks)
External links
Source on GitHub