QUESTION: 21

Choose the correct answer :

You are asked to provide UML model content such that other modelers may use the Classes of your model as modular, partial specifications to be more fully specified by their models. You decide to provide a Vehicle Class that represents a partial specification of automobiles and allows tailoring of this class through the other modelers' choices of kinds of propulsion such as a gasoline motor, an electric engine, or a manual cycle system. You want to limit which Class kinds the other modelers can choose as their propulsion system.
Which tactic appropriately exploits UML's syntax and semantics for modular reification?

Model GasolineMotorVehicle. ElectricEngineVehicle. and ManualCyclingVehicle as specialized versions of your Abstract Class Automobile.
Model Vehicle as a Template Classifier with a Class Parameter named Thrustor that is constrained to be a derivative of an Abstract Class PropulsionSystem
Model Vehicle as a Class with a Property named thrustor of Type Enumeration Class Thrustor that has Enumeration Literals GasolmeMotor. ElectncEngme. and ManualCycler.
Model three separate Packages named GasolineMotor Vehicles. ElectricEngme Vehicles, and ManualCyclmg Vehicles and Package Import into each of these the Package with your Vehicle Class.

Answer(s): B

Explanation:

The approach described in option B aligns with the concept of template classifiers in UML, which allows for the creation of parameterized elements that can be instantiated with different arguments. By modeling Vehicle as a template classifier with a parameter named Thrustor, other modelers can instantiate this template with their chosen propulsion system, as long as it is a type that specializes the PropulsionSystem abstract class. This method provides the flexibility needed for modelers to tailor the Vehicle class to different propulsion systems while enforcing that only derivatives of PropulsionSystem can be used as the actual parameter for Thrustor. This tactic of using template classifiers and class parameters is an application of UML's syntax and semantics for creating modular and customizable models. This practice is detailed in the UML 2.x Superstructure Specification, particularly in the sections describing template classifiers and their parameters.

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QUESTION: 22

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Which subclasses of Classifiers can be parameterized and used as Template Parameters?

Class. Component. Interface, but not Signal
Signal. Use Case, Component, but not Datatype
Activity. Interaction, State Machine, but not Collaboration
all subclasses of Classifier e.g. Class. Component. Datatype. Interface. Signal

Answer(s): D

Explanation:

In UML, a template is a parameterizable element, and the parameters for a template are typically classes or other classifiers. According to the UML 2.x Superstructure Specification, all subclasses of Classifier can potentially be used as template parameters. This includes classes, components,

datatypes, interfaces, signals, and more. The specification provides the flexibility to define template parameters that are specialized types, allowing for powerful and reusable designs. The ability to parameterize these elements is foundational to creating generic and reusable model elements, which is a core capability of the UML's templating mechanism.

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QUESTION: 23

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A developer wants to make sure that each specialization of Class Bicycle has its own unique set of values for the suitable road surface and average speed Which diagram imposes these requirements?

A)

B)

C)

D)

Option A
Option B
Option C
Option D

Answer(s): C

Explanation:

In Option C, the properties suitable road surface and average speed have been redefined in the subclasses Recumbent Bike and Racing Bike. The use of the {redefines} keyword in UML signifies that the subclass will provide its own specific values for these properties, overriding the general ones provided by the superclass Bicycle. This is the correct way to enforce that each specialization of Bicycle has a unique set of values for these attributes, as redefinition allows for the customization of inherited properties on a per-subclass basis. The use of {redefines} is specified in the UML 2.x Superstructure Specification, which describes how properties inherited from a superclass can be customized by subclasses.

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QUESTION: 24

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Consider the following diagram:

Which statement is correct about the diagram?

Each subclass of Electronic Device Kind must have a set of required Certifications defined.
Each subclass of Electronic Device in the shown Generalization Set must have a set of required Certifications defined.
The "Electronic Device Kind" Class and the "Electronic Device Kind" Generalization Set have the same name, but no semantic connection is implied by this.
These are two alternative but incompatible ways to specify Electronic Device Kinds, either as Class "Electronic Device Kind" or as Specialization of "Electronic Device".

Answer(s): A

Explanation:

The diagram depicts Electronic Device Kind as a class that requires a set of Certifications (required :
Certification[1..*]). This implies that any subclass of Electronic Device Kind must provide a set of required Certifications because the multiplicity [1..*] indicates that at least one Certification is mandatory for each instance of Electronic Device Kind or its subclasses. Therefore, when a subclass is created, it inherits the requirement to specify what Certifications are needed. This is a standard UML generalization, where the subclass inherits the attributes and constraints of its superclass. This interpretation is consistent with the rules defined in the UML 2.x Superstructure Specification, which includes the semantics of class generalization and attribute inheritance.

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Free OMG-OCUP2-ADV300 Exam Braindumps (page: 6)

QUESTION: 21

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QUESTION: 22

Explanation:

QUESTION: 23

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QUESTION: 24

Explanation: