Focus BDD for the Positronium block

Gallery
Tutorial
TRAIL: Webel SysML Parsing Analysis example: A particle physics taxonomy from Wikipedia
Section
Topic level
INTERMEDIATE
UML keywords
Association
Connector
internal structure compartment
SysML keywords
Block
SysML Block Definition Diagram
Keywords
Slide kind
SysML Block Definition Diagram (BDD)
We leverage this snippet for a focus BDD for the Positronium block:
Wikipedia: 'Positronium (Ps) is a system consisting of an electron and its anti-particle, a positron, bound together into an exotic atom, specifically an onium.'
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The diagram also happens to use the structure compartment of the block to show a Connector between the parts, typed by the Anti Association.
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Lepton flavours and generations
Notes
[CONVENTION, DISPLAY, MODELLING, STYLE, TIP]{STRONG} Webel: SysMLv1: Highly recommend creating a "focus" Block Definition Diagram (BDD) for each main Block with expanded feature details and relationships to at least nearest neighbours
[DISPLAY, STYLE, TIP, TOOL]{SUGGESTED} Style: use line width 2 or 3 on the border of the "focus" element in "focus" diagrams (such as the main Block or Class of a dedicated Block Definition Diagram or Class Diagram)
[NAMING, TIP]{OPTION} Optionally suffix the "focus" BDD for a Block with '.bdd' so that it won't clash with a corresponding IBD on diagram export. This is not a SysMLv1 concern, it is purely a workflow concern. It has the slight disadvantage that BDD may "indicated" twice.
Snippets (quotes/extracts)
 Positronium (Ps) is a system consisting of an electron and its anti-particle, a positron, bound together into an exotic atom, specifically an onium.
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Visit also (backlinks)
Related slides (includes other tutorials)
Related slides (backlinks, includes other tutorials)
Focus BDD for block RefractingTelescope