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Difference between Type and Category
This documentation is valid for:
Rule of Thumb
: when you need to clasify a thing, use Type if it can be of only one Type, and Category if can have more than one.
Data Model Patterns
David Hay makes a point discussing between the difference of a Type or a Category of a thing.
Basically Type is a N to 1 relationship (a thing can be of only one Type) and Category is a M to N relationship (a thing can have many categories at the same time).
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CREATED: 2 OCTOBER 2004 08:57 PM -
UPDATED: 2 OCTOBER 2004