Discussion
When a business rule involves three or more graphical symbols, you can show the constraint as a note and attach the note to each of the symbols by a dashed line.
Answer: A
Correct answer: True
A constraint involving two symbols can be written along the line between them, but one involving three or more has no single line to sit on. UML therefore allows it to be written in a note and attached to each participating symbol by a dashed line - the same mechanism used for comments generally.
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