An abstract Q(u)ark for M(u)ster M(u)ark

However, once you've worked through quite a few snippets you'll start getting some features displaying on blocks that are not relevant to a particular Parsing Analysis diagram. The following tool power tip is easy to use:

Webel Parsing Analysis: MagicDraw/Cameo: In parsing diagrams use the element compartment properties to only display the features relevant to the context of a particular snippet's text extract.

This constraint can't be easily expressed in OCL, so for now a text description is fine:

Wikipedia: 'Quarks ... are the only known particles whose electric charges are not integer multiples of the elementary charge.'

When we get to the concrete Quark sub-blocks they will get charge values anyway.

Until now the model only had an interaction "flag" value property isInteractsStrong:Boolean, the flags corresponding to the other interaction forces have now also been added: isInteractsWeak, isInteractsGravitation, and isInteractsEM, and all redefined as 'true' for Quark. For now these all live in ElementaryParticle, not in Particle, because they have so far only been mentioned in the context of elementary particles.

Clearly, any Particle with mass is subject to gravity, so isInteractsGravitation probably needs to be promoted up. But does it makes sense to talk about an Atom (a composite particle) interacting with the strong force? Let's wait until a relevant snippet's text extract clarifies it.

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There are six types of quarks (and six antiquarks)

Notes

[POLICY, STYLE]{STRICT} Webel Parsing Analysis «pa» diagrams are NOT intended as final presentation diagrams! They serve merely to traceably elicit model elements, which may then be shown in other (typically much tidier) presentation diagrams elsewhere.

[DISPLAY, STYLE, TIP]{SUGGESTED} Webel Parsing Analysis: If the dashed-line "anchors" from your «snippet» ElementGroup symbols to elicited elements make a «pa» Parsing Analysis Diagram (PAD) too hard to read, try making them light grey using symbol properties.

Snippets (quotes/extracts)

A quark is a type of elementary particle and a fundamental constituent of matter.

Quarks combine to form composite particles called hadrons, the most stable of which are protons and neutrons, the components of atomic nuclei.

Due to a phenomenon known as color confinement, quarks are never found in isolation; they can be found only within hadrons, which include baryons (such as protons and neutrons) and mesons, or in quark–gluon plasmas.

Quarks have various intrinsic properties, including electric charge, mass, color charge, and spin.

Quarks ... are the only elementary particles in the Standard Model of particle physics to experience all four fundamental interactions, also known as fundamental forces (electromagnetism, gravitation, strong interaction, and weak interaction).

Quarks ... are the only known particles whose electric charges are not integer multiples of the elementary charge.