Newly Released OMG OMG-OCUP2-FOUND100 Exam PDF

In UML, when you need to reference an element from another package while inside a different package, you use the qualified name. A qualified name includes the package name followed by two colons and then the element name. This ensures that the reference is clear and unambiguous, especially when different packages may have elements with the same name.

The correct syntax for referring to elementOneof PackageP1from inside PackageP2isP1::One, where::is the scope resolution operator used to separate the package name from the element name.

Therefore, the correct answer is:

D. P1::One

In UML sequence diagrams, a signal is typically represented as an asynchronous message without a return value. Asynchronous messages are often denoted with an open arrowhead, and they can represent the sending of a signal.

Looking at the diagram provided, 'p' is sent from 'v2[C]' to 'v3[B]' with an open arrowhead, which indicates that it is an asynchronous message. This fits the common representation of a signal, as it does not expect a response.

'A', 'B', and 'C' do not represent signals in the context of a sequence diagram: A) 'v' is not shown in the diagram; it might refer to a lifeline, which is not a signal. B) 'B' refers to a class or object type and not a message or signal. C) 'm' is represented as a synchronous message (as it has a return arrow), which is not typical for signals.

Therefore, the correct answer is:

D. p

In UML, the features of a class are the combined set of attributes (properties) and operations (methods) that are defined for that class. A feature is a characteristic that classifiers (like classes) can possess. In the context of UML, operations are considered behavioral features, while attributes are considered structural features.

Let's analyze the given options in the context of the Car class:

A. "drive()" is an operation (method) of the Car class, but "Car" itself is the name of the class, not a feature.

B. "stop()" is an operation of the Car class, but "driver" is a role name for an association, not a feature of the Car class.

C. "name" is an attribute of the Person class, not the Car class. "stop()" is indeed an operation of the Car class.

D. "drive()" and "stop()" are operations of the Car class. "Person" is not a feature of the Car class, but no attributes of the Car class are shown in the diagram, and since features include both operations and attributes, the correct answer from the available options isD. It is understood that operations of a class are features, so the answer includes both operations of the Car class: "drive()" and "stop()".

According to the UML 2 Foundation specification, both structural features (attributes) and behavioral features (operations) are considered features of a class, so the correct answer would be the operations "drive()" and "stop()" since those are the only features explicitly represented in the Car class in the diagram.

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 ConstraintLanguage). 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.