SYSML21 — Icon issues

Clause 9.3.5 describes icon metadata, with the objectives to attach icons to model elements in a graphical/tabular view,
There are two issues here
(1) It is not practical too attach an icon to each individual usage, it is expected that assigning such a metdata to a semantic metadata would imply the icons also on elements referring to the semantic metadata. For example, if a semantic metadata defined for "assembly", any definition or usage "tagged" as assembly is expected to have this icon. The current specification does not address this practical issue.

(2) The graphical notation representative tables anf BNF do not cover how an icon is represented in case an icon is defined