Deck 5: Extending the Requirements Models

Question 1

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

Answer 1

False

Question 2

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

Answer 2

False

Question 3

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

Answer 3

False

Question 4

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

Question 5

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

Question 6

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

Question 7

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

Question 8

Another way to think of a actor using a use case is as a(n)_______.

A)external entity"
B)person"
C)system"
D)role"

Question 9

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

Question 10

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

Question 11

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

Question 12

An actor is always outside of the automation boundary.

Question 13

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

Question 14

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 15

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

Question 16

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

Question 17

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 18

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

Question 19

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

Question 20

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

Question 21

For real-world objects the state of an object is the same as its _______ .

A)lifeline"
B)status condition"
C)attribute values"
D)persistence"

Question 22

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 23

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 24

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

A) ( )"
B)[ ]"
C){ }"
D)*"

Question 25

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 26

In a state machine diagram,a state is represented by a(n)____.

A)oval"
B)black dot"
C)square"
D)arrow"

Question 27

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 28

The guard-condition on a transition indicates what?

A)Whether the transition fires."
B)Whether the action-expression executes."
C)Whether the object is in the correct state."
D)Whether the trigger message is received."

Question 29

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 30

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 31

In a transition label in a state machine the syntax is A(B)[C]/D.The D stands for what?

A)transition name"
B)true/false condition"
C)action expression"
D)input parameters"

Question 32

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 33

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 34

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 35

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 36

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 37

Which of the following documents information about classes that are part of the problem domain of the user?

A)Activity diagram"
B)State machine diagram"
C)Use case diagram"
D)System sequence diagram"

Question 38

An action-expression occurs when?

A)Before the object leaves the origin state."
B)After the object enters the destination state."
C)Before the object enters the destination state."
D)Before the transition fires."

Question 39

A vehicle object is denoted with the following label.

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

Question 40

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 41

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

Question 42

Which of the following is NOT a step in the development of a state machine diagram?

A)List all the status conditions for an object."
B)Identify state exiting transitions."
C)Expand the name of each state to identify concurrent activities."
D)Sequence the state-transition fragments."

Question 43

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

Question 44

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

Question 45

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 46

To document ____,draw a composite state with the lower portion divided into multiple compartments for each concurrent path of behavior.

A)simple nested states"
B)concurrent behavior of a single object"
C)concurrent behavior of different objects"
D)simple paths"

Question 47

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

Question 48

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

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

A message event causes what to happen?

A)An activity to finish."
B)A message to fire."
C)A guard condition to be evaluated."
D)A transition to fire."

Question 51

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

Question 52

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 53

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

Question 54

A state machine diagram is used to document the states and transitions of a(n)________.

A)Business process"
B)Use case"
C)Message"
D)Object"

Question 55

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

Question 56

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

Question 57

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

A)statechart 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 58

Which of the following is NOT an element in a transition label?

A)trigger"
B)transition name"
C)guard condition"
D)action expression"

Question 59

Two types of interaction diagrams are: (Choose two)

A)Activity diagrams"
B)Sequence diagrams"
C)State chart diagrams"
D)Class diagrams"
E)Communication diagrams"
F)Package diagrams

Question 60

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 61

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

Question 62

When an object moves from one state to another the ending state is called a(n)_______ .

Question 63

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

Question 64

The movement of an object from one state to another is done through the process of a(n)_______.

Question 65

A UML diagram that shows the life of an object in states and transitions is called a(n)_______.

Question 66

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

Question 67

The beginning state of an object when its states are diagrammed is called a(n)_______.

Question 68

In a state-machine diagram when an object is in multiple states at the same time it is called _______.

Question 69

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

Question 70

A condition during an object's life when it satisfies some criterion is called a(n)_______.

Question 71

In a state-machine diagram when one state is high-level in that it contains other states of an object,it is called a(n)______.

Question 72

List three types of frame notation in sequence diagrams.

Question 73

Briefly describe the purpose of a system sequence diagram.