areasEach area declares a well-defined part of a Dbquity site and instantiates a single, globally
accessible entity instance that acts as the root of the hierarchy of the entity instances that
comprise the area.
area <name>
...
constraintAn area declares an instance that is globally accessible. This area instance is usually
referenced simply by the area name, though sometimes for disambiguation the origin and name
of the model declaring the area needs to be prepended:
<area-name>
<origin>:<model-name>\<area-name>