Deck 5: Use Case Modeling

Question 1

Activity diagrams are not helpful when the flow of activities is too complex.​

Answer 1

False

Question 2

Activity diagrams are not helpful in developing system sequence diagrams (SSDs).​

Answer 2

False

Question 3

In an activity diagram,a separate use case may used as part of the workflow.​

Answer 3

True

Question 4

Since an activity diagram is not object-oriented (e.g.no objects),it is not a standard model of the object-oriented Unified Modeling Language (UML).​

Question 5

On a sequence diagram,a message represents a service request.​

Question 6

An Opt frame and a true/false condition on a message serve essentially the same purpose.​

Question 7

In a system sequence diagram the order of the messages is determined by numbering the messages.​

Question 8

Activity diagrams cannot be used to describe processes that involve automated system activities.​

Question 9

In a system sequence diagram a box refers to a class of objects.​

Question 10

A true/false condition on a sequence diagram indicates whether the message can be processed or not.​

Question 11

An activity diagram and the flow of activities in a fully developed use case description serve the same purpose.​

Question 12

In an interaction diagram,messages are sent and received by individual objects,not by classes.​

Question 13

Two difference scenarios of a use case would normally be described in a single fully developed use case description.​

Question 14

An actor is always outside of the automation boundary.​

Question 15

In the object-oriented approach to systems development,the flow of information is achieved by sending messages either to and from actors or back and forth between internal objects.​

Question 16

A good way to describe a use case scenario is with a state chart.

Question 17

An oval indicates an embedded use case inside of an activity diagram.​

Question 18

An Opt frame and an Alt frame do essentially the same thing.​

Question 19

A loop frame and an asterisk mean the same thing in a sequence diagram.​

Question 20

In a sequence diagram,a message is considered to be an action that is invoked on the destination object.​

Question 21

In a fully developed use case description normally the preconditions describe what?​

A)What objects must exist prior to the use case executes.
B)​What data the actor must have before the use case executes.
C)​Who the actors are that invoke the use case 
D)What business conditions must occur before the use case is invoked.

Question 22

The CRUD technique can be used to identify new use cases as well as delete unnecessary use cases.​

Question 23

The best use of the CRUD technique is used to generate new use cases.​

Question 24

On an activity diagram,the diamond represents an "AND" condition.​

Question 25

In a fully developed use case description the exception conditions represent what?​

A)What conditions might cause the system to crash.
B)What conditions prevent the system from successfully completing the use case.
C)What conditions will confuse the actor.
D)Where the system might have "bugs" and produce erroneous results.

Question 26

In a sequence diagram a horizontal dashed line represents what?​

A)A return message
B)An input message
C)​A lifeline
D)An event

Question 27

In a sequence diagram the syntax of a message is given by the following: [A] B := C (D)The letter B represents what?

A)message name
B)​return value
C)​true/false condition
D)​parameter list

Question 28

A true/false condition on a message indicates the condition of the return value of the message,i.e.whether the message was successful or not.​

Question 29

Which is correct?​

A)A
B)​B
C)​C
D)​D

Question 30

Which of the following is the best model to use to document the inputs and the outputs to a system?​

A)State chart diagram
B)Fully developed use case description
C)​Activity diagram
D)​System sequence diagram

Question 31

One of the disadvantages of UML and object-oriented models is the difficulty of synchronizing the models.​

Question 32

In UML terminology in a sequence diagram,a message refers to a(n)_______.​

A)input data
B)​communication between actors
C)​event
D)​action

Question 33

Synchronization bars are used to indicate looping in an activity diagram.​

Question 34

In a fully developed use case description,the flow of activities is most similar to what?​

A)An activity diagram
B)A class diagram
C)​A state chart diagram
D)​A system sequence diagram

Question 35

Information for Use Case Descriptions is primarily derived from System Sequence Diagrams.​

Question 36

​A unique set of internal activities within a use case which represents a unique path through the use case is called a(n)_______.

A)workflow
B)​sequence of activities
C)scenario
D)​critical path

Question 37

​A vehicle object is denoted with the following label.

A)vehicle
B)​Vehicle
C)​Vehicle
D):Vehicle

Question 38

In a fully developed use case description the postcondition data describes what conditions?​

A)The status condition of the use case.
B)​The existence of domain model objects.
C)​The condition of the actor.
D)​The data that is output by the system.

Question 39

In using the CRUD technique,new use cases and new stakeholders may be identified.​

Question 40

Numbering exception conditions,which often uses hierarchical numbering,in a fully developed use case description is helpful to _______.​

A)tie exception conditions to other diagrams or descriptions
B)​show which exception conditions are subordinate to other exceptions
C)​provide an identifier for each exception condition
D)​tie the exception condition to a processing step

Question 41

A good way to ensure that all the use cases have been identified is through _______________.​

A)the integration of UML models and comparing the results
B)​the brainstorming technique
C)​the CRUD technique
D)​the noun technique

Question 42

A textual model that describes the processing details of a use case is called a(n)________.

Question 43

Two methods to show a return value are: (Choose two)​

A)value :=
B)​[ value ]
C)​( value )
D)​:= value
E)Solid arrow with value
F)Dashed arrow with value

Question 44

On an SSD,a dashed arrow usually represents what?​

A)Object lifeline
B​)Optional message
C)External message
D)Return value(s)

Question 45

What is the primary purpose of the CRUD technique?​

A)To identify areas of erroneous definition (CRUD).
B)​To validate the set of defined use cases
C)​To validate the set of classes
D)​To validate the interests of the stakeholders

Question 46

Which of the following is NOT a valid construct as part of an activity diagram?​

A)Activity oval
B)Actor name
C)​Use case oval
D)​Relationship line

Question 47

On an Activity Diagram the arrows represent what?​

A)Transitions between states
B)​Flow of activities
C)​Relationship navigation
D)​None of the other selectio

Question 48

On a systems sequence diagram,____ indicate(s)a true/false condition.​

A)( )
B)​[ ]
C)​{ }
D)​*

Question 49

Two methods to show a repeating message are: (Choose two)​

A)Dashed arrow
B)​Brackets  [  ]
C)​Asterisk *
D)​Opt frame
E)Loop frame
F)Alt frame

Question 50

In a sequence diagram the message-name is usually given in what format?​

A)verb-noun
B)noun-verb
C)action-object
D)object-action

Question 51

On an activity diagram,which of the following is NOT a valid use of a synchronization bar?​

A)To initiate concurrent paths
B)​To initiate a loop
C)To initiate alternative paths
D)​To initiate concurrent paths by separate actors

Question 52

The ____ are the primary models from which other models draw information.​

A)state chart diagram and the problem domain class diagram.
B)​system sequence diagram and the activity diagram
C)​use case diagram and the problem domain class diagram
D)​use case description and the use case diagram

Question 53

A certain set of values or statuses that must exist before a use case begins is called a(n)_______.

Question 54

Which of the following is NOT an advantage of object-oriented modeling with several models is that _____.​

A)developing new models allows the analyst to discard unnecessary diagrams.
B)​developing new models ensures a consistency in the requirements.
C)​developing new models helps correct previously drawn diagrams
D)developing new models helps gain deeper understanding of user requirements

Question 55

Activity diagrams are useful in the development of ______________.​

A)System Sequence Diagrams
B)​Use Case Descriptions
C)​Class Diagrams
D)State Machine Diagrams

Question 56

If the True/False condition on a message evaluates to false in a sequence diagram,which of the following is correct?​

A)The message is false.
B)The message has no return value.
C)​The message is not processed.
D)​The message is not sent.

Question 57

Which model is most useful in developing a State Machine Diagram​

A) ​System Sequence Diagram
B)Activity Diagram
C)Use Case Diagram
D)​Class Diagram

Question 58

CRUD stands for _______________.​

A)Create, Read, Update, Delete
B)​Create, Report, Upload, Destroy
C)​Create, Retract, Unload, Define
D)Create, Refine, Update, Define

Question 59

Use cases may have different "paths" or sequence of steps through the use case. These different paths are called _______.

Question 60

On an SSD,a named rectangular box represents what?​

A)A class
B)​An object
C)​A swim lane
D)​A note to explain something

Question 61

In a sequence diagram the syntax of a message is given by the following:
[A] B := C (D) The letter D represents what?

Question 62

The diagram model that is useful to document the flow of activities on a fully developed use case description is called a(n)_______ diagram.

Question 63

On a sequence diagram when multiple messages are included within a repeating loop a(n)_______ is used to document it.​

Question 64

Vertical dashed lines on a system sequence diagram are used to depict a(n)what?

Question 65

A box in a system sequence diagram refers to a(n)what?​

Question 66

To show a set of messages that may be optional a(n)__________ is used.​

Question 67

To show if-then-else condition on a sequence diagram use a(n)______.​

Question 68

On a sequence diagram a short notation that indicates a repeating message is a(n)_______.​

Question 69

On an activity diagram,what are the vertical rectangles that contain the activity ovals called?​

Question 70

List three types of frame notation in sequence diagrams.​

Question 71

A certain set of values or statuses that must exist after a use case completes its processing is called a(n)_______.​

Question 72

Briefly describe the purpose of a system sequence diagram.

Question 73

List the four steps for developing and SSD from an activity diagram.​

Question 74

Identify the elements of the message syntax for a message on an SSD.​

Question 75

An arrow on a system sequence diagram is used to depict a(n)what?​

Question 76

A technique that is used to validate the set of use cases against identified classes is called __________ technique.​

Question 77

What does CRUD stand for? ____ ____ ____ ____ (no commas)​

Question 78

The following is the message syntax for an SSD.
"[ _________ ] return-value := message-name (parameter-list)"
What is missing?

Question 79

A diagram that shows the messages between an actor and the system is called a(n)_______.​

Question 80

In a sequence diagram the syntax of a message is given by the following:
[A] B := C (D)
The letter B represents what?