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An allocation is denoted as a dashed arrow with the keyword ?«allocate?» . Figure
4.22 shows a structure allocation in this notation.
Similarly to the notation variants for requirement relationships, you can alternatively
denote an allocation in a comment symbol at the target and source elements,
instead of using a dashed line (callout notation). This is necessary because
elements are often in different diagram types (e.g., in an activity diagram and in
an internal block diagram) ( Figure 4.21 ), never appearing jointly in one single diagram.
Accordingly, we cannot use the arrow notation. You can see the alternative
notation for the scenario in Figure 4.22 and Figure 4.23 .
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When representing allocations we have several options. You already saw two
notation forms. There is a third notation for elements that supports compartments,
such as blocks ( Figure 4.24 ). The domains are denoted with the keywords
allocatedFrom and allocatedTo .
4.4.2 Allocate Activity Partition
FIGURE 4-24
Other alternative notation for allocations.


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