Question 1

A major advantage of object-oriented (O-O) designs is that systems analysts can save time and avoid errors by using _____ objects.

Accepted Answer

A)   dynamic
B)   feasible
C)   modular
D)   linearE) A) and B)
F) None of the above

Question 2

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.

Accepted Answer

A)   rectangle
B)   circle
C)   oval
D)   triangleE) None of the above
F) A) and D)

Question 3

Some objects might have a few attributes;others might have dozens.

Accepted Answer

A) True 
 B)False

Question 4

A star marks the end of the lifeline.

Accepted Answer

A) True 
 B)False

Question 5

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

Accepted Answer

A)   state transition diagram
B)   sequence diagram
C)   data flow diagram
D)   scatter diagramE) B) and C)
F) All of the above

Question 6

A method is an adjective that describes the object's current status.

Accepted Answer

A) True 
 B)False

Question 7

The strongest relationship among objects is called inheritance.

Accepted Answer

A) True 
 B)False

Question 8

A class can belong to a more general category called a _____.

Accepted Answer

A)   superclass
B)   register
C)   subclass
D)   catalogE) A) and B)
F) C) and D)

Question 9

Objects within a class can be grouped into _____,which are more specific categories within a class.

Accepted Answer

A)   grids
B)   units
C)   subclasses
D)   matricesE) A) and D)
F) None of the above

Question 10

The black box concept is an example of _____,which means that all data and methods are self-contained.

Accepted Answer

A)   polymorphism
B)   inheritance
C)   encapsulation
D)   use case modelingE) B) and C)
F) All of the above

Question 11

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

Accepted Answer

A)   beneficiary
B)   user
C)   domain
D)   actorE) None of the above
F) B) and D)

Question 12

A use case represents the steps in a specific business function or process.

Accepted Answer

A) True 
 B)False

Question 13

Explain a class diagram.Also,explain how a class diagram is like a data flow diagram (DFD).

Accepted Answer

A class diagram shows the object classes...

Question 14

Using the concept of polymorphism,define messages.

Accepted Answer

A message is a command that tells an obj...

Question 15

An object belongs to a group or category called a(n) _____.

Accepted Answer

A)   aggregate
B)   concatenation
C)   class
D)   packetE) C) and D)
F) A) and B)

Question 16

An object represents a real person,place,event,or transaction.

Accepted Answer

A) True 
 B)False

Question 17

What do relationships enable objects to do? What is the strongest kind of relationship? Walk through an example that demonstrates your understanding of the concept.

Accepted Answer

Relationships enable objects to communic...

Question 18

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

Accepted Answer

A)   relationship diagram
B)   use case
C)   data flow unit
D)   interaction diagramE) A) and D)
F) B) and C)

Question 19

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.

Accepted Answer

A)   use case description
B)   use case diagram
C)   use case schematic
D)   use case outlineE) All of the above
F) None of the above

Question 20

Just as objects are similar to adjectives,attributes resemble verbs that describe what and how an object does something.

Accepted Answer

A) True 
 B)False

Exam 6: Object Modeling

Just as objects are similar to adjectives,attributes resemble verbs that describe what and how an object does something.

Correct AnswerverifiedShow Answer

A method is an adjective that describes the object's current status.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Objects within a class can be grouped into _____,which are more specific categories within a class.

Correct AnswerverifiedShow Answer

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.

Correct AnswerverifiedShow Answer

The black box concept is an example of _____,which means that all data and methods are self-contained.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

An object represents a real person,place,event,or transaction.

Correct AnswerverifiedShow Answer

Using the concept of polymorphism,define messages.

Correct AnswerverifiedA message is a command that tells an obj...View AnswerShow Answer

The strongest relationship among objects is called inheritance.

Correct AnswerverifiedShow Answer

An object belongs to a group or category called a(n) _____.

Correct AnswerverifiedShow Answer

A use case represents the steps in a specific business function or process.

Correct AnswerverifiedShow Answer

Some objects might have a few attributes;others might have dozens.

Correct AnswerverifiedShow Answer

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.

Correct AnswerverifiedShow Answer

Explain a class diagram.Also,explain how a class diagram is like a data flow diagram (DFD).

Correct AnswerverifiedA class diagram shows the object classes...View AnswerShow Answer

A class can belong to a more general category called a _____.

Correct AnswerverifiedShow Answer

A major advantage of object-oriented (O-O) designs is that systems analysts can save time and avoid errors by using _____ objects.

Correct AnswerverifiedShow Answer

A star marks the end of the lifeline.

Correct AnswerverifiedShow Answer

What do relationships enable objects to do? What is the strongest kind of relationship? Walk through an example that demonstrates your understanding of the concept.

Correct AnswerverifiedRelationships enable objects to communic...View AnswerShow Answer

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

Correct AnswerverifiedShow Answer

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A message is a command that tells an obj...
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A class diagram shows the object classes...
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Relationships enable objects to communic...
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