Transition constraint

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A transition constraint is a way of enforcing that the data doesn't enter an impossible state because of a previous state. For example, it shouldn't be possible for a person to change from being "married" to being "single, never married". The only valid states after "married" might be "divorced", "widowed", or "deceased".

Transient constraint is commonly used in database models such as relational databases.

[edit] References

Modelling Transition Constraints (ResearchIndex)

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Category: Data modeling

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• This page was last modified 22:18, 9 January 2007 by Wikipedia user Agentsoo. Based on work by Wikipedia user(s) Alaibot, John254 and Bastawhiz.
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