Dear all,

Has anyone used P54 has current permanent location in practice in an 
information system, where the containing Place is defined only with respect to 
some other physical object?

Some use cases for this pattern:

·         A set of letters in a folder, or a set of paintbrushes in a box

·         A set of coins in a display case

·         Books on a bookshelf

This seems like a very easy use case for a shortcut between Physical Objects to 
avoid creating Places that exist only to be the P54 of some other object.  The 
containing object is typically 1:1 with its container-space, as even if there 
are drawers in a desk, you could model the drawer as a part of the desk, which 
had its own space. Thus the cutlery in one drawer, the cooking utensils in a 
different drawer, despite being part of the same kitchen cupboard unit.

Similarly, P53 and P55 could also benefit from such a shortcut for their 
different temporal aspects.

Thoughts?

Rob

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