Explian following terms: Constraint Rules, Design by contract.



Explian following terms: Constraint Rules, Design by contract...

Answer / indra

Constraint rule:
Much of what you are doing in drawing a class diagram
is indicating constraint.

EX:Corporate customers have credit limits but Personal
customer do not.

Design by contract:
It provides rigorous defn. of operation's purpose and
class's legal state. This is to enhance the debugging.

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