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  1. OMG Issue

UML22 — Operations and derived attributes

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  • Key: UML22-521
  • Legacy Issue Number: 6692
  • Status: closed  
  • Source: TimeWarp Engineering Ltd. ( Steven Cramer)
  • Summary:

    I am looking at ValueSpecification which introduces Additional Operations, such as integerValue(). My question is : What is the reasoning behind making these Operations vs. Derived attributes?

    In MultiplicityElement we have a derived attribute lower which is equal to lowerBound(). What logic is used to determine whether an Operation has a corresponding Attribute?

    Also the spec seems to indicate that all derived values will be implemented via some operation. Is this a requirement or an assumption of implementation?

    Why can’t lower in MultiplicityElement simple be defined as if lowerValue->notEmpty() then 1 else lowerValue.integerValue()… what makes the lowerBound() operation required?
  • Reported: UML 1.5 — Wed, 10 Dec 2003 05:00 GMT
  • Disposition: Resolved — UML 2.1
  • Disposition Summary:

    No Data Available
  • Updated: Fri, 6 Mar 2015 20:58 GMT