OMG-OCUP2-FOUND100 Exam - Topic 2 Question 39 Discussion

Actual exam question for OMG's OMG-OCUP2-FOUND100 exam

Question #: 39
Topic #: 2

[All OMG-OCUP2-FOUND100 Questions]

Choose the correct answer:

In UML modeling, what is a Constraint?

Aa condition that must be satisfied when it is evaluated

Ba condition that should be met depending on system operation

Ca condition that causes the state of the objects to change over time

Da condition that constrains what can or cannot be put in a class diagram

Show Suggested Answer

Suggested Answer: A

In UML modeling, a constraint is defined as:

A . a condition that must be satisfied when it is evaluated

A constraint is a semantic condition or restriction expressed in natural language text or a machine-readable language for expressing constraints, such as OCL (Object Constraint Language). Constraints specify invariants that must hold for the system being modeled at all times. This means that whenever the constraint is evaluated, the condition it expresses must be satisfied (UML 2.5 specification, section 7.9).

The other options do not accurately define what a constraint is in the context of UML:

B . A condition that should be met depending on system operation -- This is not precise as constraints are not optional and do not depend on system operation; they are always applicable.

C . A condition that causes the state of the objects to change over time -- This describes a side effect, which is not the purpose of a constraint. A constraint is a condition that must always be met, not something that induces change.

D . A condition that constrains what can or cannot be put in a class diagram -- This is too broad and imprecise. Constraints apply to elements within the class diagram and are not about the content of the diagram itself.

by Ines at Nov 25, 2025, 08:15 AM

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Lashunda

9 hours ago

Wait, are we sure it's not about changing object states?

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Tarra

6 days ago

I'm leaning towards option A too, sounds right!

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Hailey

11 days ago

I think it's more about what can or cannot be in a class diagram.

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Lynelle

16 days ago

Constraints? More like brain teasers if you ask me.

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Regenia

21 days ago

C) a condition that causes the state of the objects to change over time

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Dick

26 days ago

B) a condition that should be met depending on system operation

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Dwight

1 month ago

This question is a real constraint on my brain!

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Nichelle

1 month ago

I’m not entirely sure, but I feel like constraints are related to how objects change states, so maybe C could be right?

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Caren

1 month ago

I remember practicing a question about constraints in class, and I think it was about conditions that should be met, which might be B?

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Mirta

2 months ago

I'm a little unsure on this one. Is a constraint just something that affects the system, or does it have to be a mandatory condition? I'm leaning towards A but I'm not 100% confident.

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Corazon

2 months ago

I remember learning about constraints in UML. I'm pretty sure they're conditions that have to be met, not just optional ones. I'll select A.

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Chandra

2 months ago

Okay, let me think this through. A constraint is a rule or limitation on the model, so I'm guessing it has to be a required condition, not just a suggested one. I'll go with A.

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