LLUP:Lifetime Applicability Scope

The lifetime applicability scope represents the DateTime range in which the message can be seen as applicable in relation to the current DateTime. The lifetime applicability scope is determined by comparing the DateTime value of the 'scope/@publish' attribute if it exists, or the current DateTime if it does not, with the current DateTime value of the 'scope/@expire' attribute. The lifetime applicability scope is in contrast to the lifetime visibility scope which also includes the DateTime value of the 'scope/@archive' attribute if it exists, or an indefinite amount of time in the future if it does not.