Legacy Issue Number: 19637
Source: Model Driven Solutions ( Steve Cook)
In ptc-13-09-05.pdf on page 9 it says:
Where items need to be grouped they are enclosed in simple parenthesis; for example:
(<item-1> | <item-2>) *
signifies a sequence of one zero or more items, each of which is <item-1> or <item-2>.
I think the word one must be replaces by zero because on page 28 it says:
If the lower bound is equal to the upper bound, then an alternate notation is to use a string containing just the upper bound. For example, “1” is semantically equivalent to “1..1” multiplicity. A multiplicity with zero as the lower bound and an unspecified upper bound may use the alternative notation containing a single star “” instead of “0..” multiplicity.
Reported: UML 2.5 — Fri, 10 Oct 2014 04:00 GMT
Updated: Fri, 6 Mar 2015 20:57 GMT