UML22 — Section: 18.3.2

The derived attribute isRequired default multiplicity is not supported by fig. 446. Please verify all mutliplicities between fig 446 and text for this concept agree. The association ownedEnd:ExtensionEnd[1] does not show that it redefines ownedEnd in the fig.446. Statement under attributes implies that the lower and upper bound must = 1 but Additional Operations [3] does not suppport this. Fig. 448 notation does not agree with text. If MOF notation is different, then clarify.

See issue 8453 for disposition