What are various kinds of invariants and rulesets used in uml?
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Answer / Anupam Rani
In UML, invariants are conditions that must hold true for a class or a component at any point in time. There are three types: Navigability Invariants (navigability can be changed), Existence Invariants (an attribute exists if its value is not null), and Multiplicity Invariants (multiplicity rules for relationships). Rulesets are a collection of constraints that apply to a specific model element or a group of elements.
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