Figure 5-3 Sequence diagram with localities
Joint realization
At this point, our next step is joint realization. If we think of an individual operation in the system, at any level of decomposition, it has a tie to both its logical element, and to the distribution element where it is implemented. An analogy
would be a person who is a citizen of one country, but a resident of another. The operation is a citizen of its logical element, where it was born and had its origin in
the model. The same operation is a resident of the locality where it has been implemented; where it now lives and performs its work.
