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*Finding the right type can be difficult at times.* For some topics we are tempted to assign a type, which is actually just a role they play. Some of us are artists, some are engineers, and some are students. But we are all of the type *Person*, this is what we are our *whole life*. All other qualities just accompany us for a limited amount of time.
*Some types are more basic than others*. To administer a Topincs Store, you must be familiar with the basic types:
* Topic type: a topic, that some thing might be an instance of, e.g. Person, Book, Company, and Song.
* Occurrence type: a property that applies to one topic only must be declared as an occurrence type, e.g. _Email address_, _Date of birth_, and _Homepage_.
* Association type: a type of association between two or more topics is an association type, e.g Authorship, Parenthood, and Part/Whole.
* Role type: an association type uses one or more role types to identify the nature of the involvement of associated topics, e.g. Author, Work, Parent, Child, Part, and Whole.
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Created: 2007-10-18 12:32:32, Robert Cerny Modified: 2007-12-12 17:45:30, Robert Cerny |
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The importance of typing (Article)
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Created: 2007-10-25 09:08:46, Robert Cerny Modified: 2007-10-25 09:08:46, Robert Cerny |