Focus BDD for block RefractingTelescope

Gallery
Tutorial
TRAIL: Webel SysML Parsing Analysis example: Optical telescopes from Wikipedia: Structure and port-based light flow model
Section
Topic level
INTERMEDIATE
UML keywords
Dependency
Property::redefinedProperty
AggregationKind
AggregationKind::shared
SysML keywords
Block
ValueType
Association
reference property
MD:SharedProperty
shared property
Keywords
Slide kind
SysML Block Definition Diagram (BDD)
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
Some other tips:
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)
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.
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Since the focus of this trail is going to be reflecting telescopes, this won't be fully analysed here yet:

Wikipedia: 'All refracting telescopes use the same principles. The combination of an objective lens and some type of eyepiece is used to gather more light than the human eye is able to collect on its own, focus it, and present the viewer with a brighter, clearer, ...'

For now, just note that a "focus" BDD is where you can start to show more features of a Block, including inherited ones as indicated by the caret '^' symbol.

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The reflecting telescope uses mirrors to collect and focus light
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.
[TIP]{RECOMMENDED} Do export your UML/SysML presentation diagrams (only, not every diagram) regularly as static images; it will help you develop diagrams that are better balanced and communicate well with stakeholders.
Snippets (quotes/extracts)
 The first known practical telescopes were refracting telescopes invented in the Netherlands at the beginning of the 17th century, by using glass lenses.
 They were used for both terrestrial applications and astronomy.
 All refracting telescopes use the same principles. The combination of an objective lens and some type of eyepiece is used to gather more light than the human eye is able to collect on its own, focus it, and present the viewer with a brighter, clearer, ...
  [SysML-1.7] A property typed by a Block that does not have composite aggregation is classified as a reference property.
  [SysML-1.6] SysML also supports properties with shared aggregation, as shown by a white diamond symbol on an association.
  [SysML-1.6] Like UML, SysML defines no specific semantics or constraints for properties with shared aggregation, but particular models or tools may interpret them in specific ways.
  [UML-2.5.1] Members that are inherited by a Classifier may be shown on a diagram of that Classifier by prepending a caret ’^’ symbol to the textual representation that would be shown if the member were not inherited.
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Visit also (backlinks)
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Related slides (backlinks, includes other tutorials)
Focus BDD for block RefractingTelescope