SOAML11 — Figure 95 extends activity execution semantics

Figure 95 isn't explained very well, but from other conversations it
seems to assume the runtime target of invocation actions can be derived
from the the partition. While port/part partitions require the target
input of invocation actions to be the runtime value of a specific
property represented by the partition, they do not have the execution
semantics to assign the value. This could be described in soaML as an
extension of UML semantics. Probably affected by next issue.