| Abstraction of Service Information |
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| • | Symbolic
Representation |
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| – | Each
PIM Version Has a Unique |
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| Representation
of “Office,” “Family,” etc. |
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| • | Object
Oriented Polymorphism |
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| – | PIM’s
Support a Common Set of Functions |
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| • | Object
Oriented Encapsulation |
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| – | PIM’s
Implementations Are Independent of |
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| Which
FM’s Might Use Them |
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