Question 1

A(n) _____ represents the steps in a specific business function or process.
A)relationship diagram
B)use case
C)data flow unit
D)interaction diagram

Accepted Answer

The answer of A(n) _____ represents the steps in a...

Question 2

In a use case, an external entity, called a(n) _____, initiates a use case by requesting the system to perform a function or process.
A)beneficiary
B)user
C)domain
D)actor

Accepted Answer

In a use case, an external entity is called an actor, and they initiate the use case by requesting the system to perform a function or process. The other options are not applicable or accurate in this context.

Question 3

For each use case, a _____ in the form of a table is developed to document the name of the use case, the actor, a description of the use case, and so forth.
A)use case description
B)use case diagram
C)use case schematic
D)use case outline

Accepted Answer

A use case description is a document that describes each use case in detail, including the name of the use case, the actor, a description of the use case, and any preconditions, postconditions, or alternate flows. A use case diagram is a graphical representation of the use cases, actors, and their relationships, but it does not provide detailed descriptions. A use case schematic and outline are not commonly used terms in the context of use case development.

Question 4

For a use case diagram, the _____ shows what is included in the system and what is not included in the system.
A)system design
B)system boundary
C)system layout
D)system matrix

Accepted Answer

The system boundary defines the scope of the system and shows what is included in the system and what is not included. It is important to establish the system boundary in order to avoid confusion and ensure that all stakeholders have a clear understanding of the system's scope. The other options are not relevant to the definition of the system boundary in a use case diagram.

Question 5

A(n) _____ resembles a horizontal flowchart that shows the actions and events as they occur.
A)state transition diagram
B)sequence diagram
C)business model diagram
D)activity diagram

Accepted Answer

Activity diagram resembles a horizontal flowchart that shows the actions and events as they occur. State transition diagram represents the transitions between the states of an object, business model diagram shows the relationships between different aspects of a business model, and sequence diagram shows the interactions between objects in a certain time sequence.

Question 6

A(n) _____ graphically documents a use case by showing the classes, the messages, and the timing of the messages.
A)state transition diagram
B)sequence diagram
C)data flow diagram
D)scatter diagram

Accepted Answer

A sequence diagram is used to graphically represent the interaction between objects in a use case. It shows the sequence of messages exchanged between objects and the time when each message is sent or received. The diagram also shows the objects and classes involved in the use case. State transition diagram is used to describe the behavior of a system where it shows the possible states of an object and the transitions between these states. Data flow diagram is used to represent the flow of data in a system. Scatter diagram is used to show the correlation between two variables.

Question 7

In a sequence diagram, a lifeline is identified by a _____ line.
A)solid
B)dashed
C)red
D)curved

Accepted Answer

The answer of In a sequence diagram, a lifeline is...

Question 8

In a sequence diagram, the _____ indicates when an object sends or receives a message.
A)request link
B)focus
C)command line
D)lifeline

Accepted Answer

The answer of In a sequence diagram, the _____ indicates...

Question 9

A _____ is a visual summary of several related use cases within a system or subsystem.
A)use case description
B)use case diagram
C)use case schema
D)use case matrix

Accepted Answer

A use case diagram is a visual representation of several related use cases within a system or subsystem. Use case descriptions provide more detailed information about each individual use case, but do not provide a visual summary of multiple use cases. Use case schemas and matrices are not commonly used terms in the field of use case modeling.

Question 10

The Unified Modeling Language (UML) notation _____ identifies a zero or many relation.
A)0..1
B)1..*
C)0..*
D)0..0

Accepted Answer

The notation 0..* in UML identifies a zero or many relation. Option A (0..1) signifies a relation where there can either be none or exactly one instance of the linked class. Option B (1..*) signifies a relation where there is at least one instance of the linked class but can be many. Option D (0..0) is not a valid UML notation as it doesn't make sense to have a relation that can never exist.

Question 11

When a use case diagram is created, the first step is to identify the system boundary, which is represented by a _____.
A)triangle
B)circle
C)rectangle
D)square

Accepted Answer

A rectangle is typically used to represent the system boundary in a use case diagram. This rectangle contains all the use cases that are relevant to the system being modeled, and all actors interacting with the system are outside of this rectangle.

Question 12

In a use case, the _____ is shown as a stick figure with a label that identifies its role.
A)actor
B)association
C)linkage
D)service request

Accepted Answer

In a use case, the actor is depicted as a stick figure with a label that defines its role. Actors are external to the system and interact with it to achieve their objectives.

Question 13

The line from the actor to the use case is called a(n) _____.
A)association
B)aggregation
C)lifeline
D)observation

Accepted Answer

The line connecting the actor to the use case in a use case diagram represents an association between them. An association is a relationship between two or more things, and in this case, it represents the interaction between the actor and the use case scenario. Aggregation represents a relationship between a whole object and its parts, lifeline represents the lifespan of an object or class, and observation represents the ability to observe messages and communication between objects. None of these options accurately describe the line between the actor and use case in a use case diagram.

Question 14

The Unified Modeling Language (UML) symbol for a use case is a(n) _____ with a label that describes the action or event.
A)rectangle
B)triangle
C)dashed line
D)oval

Accepted Answer

The answer of The Unified Modeling Language (UML) symbol for...

Question 15

In a class diagram, each class appears as a(n) _____, with the class name at the top, followed by the class's attributes and methods.
A)rectangle
B)circle
C)oval
D)triangle

Accepted Answer

In a class diagram, classes are represented as rectangles, with the class name at the top and the attributes and methods listed below. This is a common convention in UML (Unified Modeling Language), which is a widely-used notation for software design.

Question 16

In a sequence diagram, a _____ is identified by a line showing direction that runs between two objects.
A)message
B)procedure
C)method
D)response

Accepted Answer

A message is identified by a line showing direction that runs between two objects in a sequence diagram. The message represents some sort of communication or action being performed between the objects.

Question 17

A(n) _____ shows the object classes and relationships involved in a use case.
A)class diagram
B)association diagram
C)use case diagram
D)modeling diagram

Accepted Answer

The answer of A(n) _____ shows the object classes and...

Question 18

_____ describes how instances of one class relate to instances of another class.
A)A modifier
B)A deliverable
C)Scope
D)Cardinality

Accepted Answer

Cardinality in object-oriented programming refers to the relationships between classes and how instances of one class relate to instances of another class. It specifies how many instances of a class may be associated with instances of another class. For example, one-to-one, one-to-many, or many-to-many relationships.

Question 19

In a sequence diagram, a _____ represents the time during which an object above it is able to interact with the other objects in the use case.
A)focus point
B)schematic matrix
C)validity link
D)lifeline

Accepted Answer

A lifeline represents the time during which an object above it is able to interact with the other objects in the use case.

Question 20

A _____ shows how an object changes from one state to another, depending on events that affect the object.
A)state transition diagram
B)case tools diagram
C)scatter diagram
D)business process diagram

Accepted Answer

A state transition diagram is specifically designed to show how an object or system changes from one state to another in response to events. This makes it the best choice for the given definition. The other diagrams listed are not designed to show state changes in this way.

Quiz 6: Object Modeling

A(n) _____ represents the steps in a specific business function or process.

In a use case, an external entity, called a(n) _____, initiates a use case by requesting the system to perform a function or process.

For each use case, a _____ in the form of a table is developed to document the name of the use case, the actor, a description of the use case, and so forth.

For a use case diagram, the _____ shows what is included in the system and what is not included in the system.

A(n) _____ resembles a horizontal flowchart that shows the actions and events as they occur.

A(n) _____ graphically documents a use case by showing the classes, the messages, and the timing of the messages.

In a sequence diagram, a lifeline is identified by a _____ line.

In a sequence diagram, the _____ indicates when an object sends or receives a message.

A _____ is a visual summary of several related use cases within a system or subsystem.

The Unified Modeling Language (UML) notation _____ identifies a zero or many relation.

When a use case diagram is created, the first step is to identify the system boundary, which is represented by a _____.

In a use case, the _____ is shown as a stick figure with a label that identifies its role.

The line from the actor to the use case is called a(n) _____.

The Unified Modeling Language (UML) symbol for a use case is a(n) _____ with a label that describes the action or event.

In a class diagram, each class appears as a(n) _____, with the class name at the top, followed by the class's attributes and methods.

In a sequence diagram, a _____ is identified by a line showing direction that runs between two objects.

A(n) _____ shows the object classes and relationships involved in a use case.

_____ describes how instances of one class relate to instances of another class.

In a sequence diagram, a _____ represents the time during which an object above it is able to interact with the other objects in the use case.

A _____ shows how an object changes from one state to another, depending on events that affect the object.