UML22 — InteractionOccurrence - Syntax rules for name not clear

"name ::=[ attribute-name = ][collaborationoccurrence.] interactionname[‘(‘arguments’)’] [: return-value] argument ::= in-argument [ out out-argument]"

should be changed to

"name ::= [ attribute-name '=' ][collaborationoccurrence '.'] interactionname[‘(‘arguments’)’] [':' return-value] arguments ::= argument [ ',' arguments ] argument ::= value | 'out' name [ ':' value] " | ''

Four paragraphs below, the spec says that the same syntax is used as for Messages. This sentence should be deleted unless the syntax rules are actually updated to reflect the syntax rules of Message names on page 428.

see above