Question 1

The diagram that shows the scope of the system, indicating what elements are inside and outside the system, is called a:

Accepted Answer

A)  context diagram. 
B)  level-2 diagram. 
C)  referencing diagram. 
D)  representative diagram. 
E)  decomposition diagram.

Question 2

Student data contained on an enrollment form would be represented on a data-flow diagram as a:

Accepted Answer

A)  process. 
B)  data flow. 
C)  source. 
D)  data store. 
E)  relationship.

Question 3

A data-flow diagram (DFD) is a graphical tool that allows analysts to illustrate the flow of data in an information system.

Accepted Answer

A) True 
 B)False

Question 4

Sources and sinks are internal to the system.

Accepted Answer

A) True 
 B)False

Question 5

Techniques used for modeling system logic include:

Accepted Answer

A)  flow charts. 
B)  decision tables. 
C)  data-flow diagrams. 
D)  dialogue charts. 
E)  entity relationship diagrams.

Question 6

The lowest-level data-flow diagrams are called level-0 diagrams.

Accepted Answer

A) True 
 B)False

Question 7

Completeness, consistency, timing, iterative development, and primitive DFDs are guidelines for drawing DFDs.

Accepted Answer

A) True 
 B)False

Question 8

Match each of the data-flow diagramming symbols with corresponding examples.(Answers may occur more than once.)
-Teller

Accepted Answer

A) Process 
B) Data flow 
C) Source/sink 
D) Data store

Question 9

Data-flow diagrams evolve from the more general to the more detailed as current and replacement systems are better understood.

Accepted Answer

A) True 
 B)False

Question 10

Match each of the following terms with its description.
-The lowest level of decomposition for a data-flow diagram

Accepted Answer

A) Source/sink 
B) Level-0 diagram 
C) Data flow 
D) Data store 
E) Balancing
F)DFD completeness
G)DFD consistency
H)Level-n diagram
I)Primitive DFD
J)Process
K)Gap analysis

Question 11

For each of the following statements, answer "a" if the statement is a true data-flow diagramming rule, and answer "b" if the rule is false.
-A data flow cannot go directly back to the same process it leaves.

Accepted Answer

The answer of For each of the following statements, answer...

Question 12

Briefly discuss how DFDs can be used as analysis tools.

Accepted Answer

The answer of Briefly discuss how DFDs can be used...

Question 13

Match each of the data-flow diagramming symbols with corresponding examples.(Answers may occur more than once.)
-Generate paycheck

Accepted Answer

A) Process 
B) Data flow 
C) Source/sink 
D) Data store

Question 14

Double-ended arrows are used to represent data flowing in both directions.

Accepted Answer

A) True 
 B)False

Question 15

Which of the following is NOT a true statement regarding data flows?

Accepted Answer

A)  A data flow can go directly back to the same process it leaves. 
B)  A fork in a data flow means that exactly the same data go from a common location to two or more different processes, data stores, or sources/sinks. 
C)  A data flow from a data store means retrieve or use. 
D)  A data flow has a noun phrase label. 
E)  A data flow has only one direction of flow between symbols.

Question 16

Match each of the following terms with its description.
-The extent to which information contained on one level of a set of nested data-flow diagrams is also included on other levels

Accepted Answer

A) Source/sink 
B) Level-0 diagram 
C) Data flow 
D) Data store 
E) Balancing
F)DFD completeness
G)DFD consistency
H)Level-n diagram
I)Primitive DFD
J)Process
K)Gap analysis

Question 17

A file folder containing orders would be represented on a data-flow diagram as a:

Accepted Answer

A)  process. 
B)  source. 
C)  data flow. 
D)  data store. 
E)  relationship.

Question 18

Which of the following is NOT a process modeling deliverable?

Accepted Answer

A)  A context data-flow diagram 
B)  Thorough descriptions of each DFD component 
C)  DFDs of the current physical system 
D)  An entity relationship diagram 
E)  DFDs of the new logical system

Question 19

DFD cohesion means your DFDs include all of the necessary components for the system you are modeling.

Accepted Answer

A) True 
 B)False

Question 20

Match each of the data-flow diagramming symbols with corresponding examples.(Answers may occur more than once.)
-Customer

Accepted Answer

A) Process 
B) Data flow 
C) Source/sink 
D) Data store

Exam 6: Structuring System Requirements: Process Modeling

The diagram that shows the scope of the system, indicating what elements are inside and outside the system, is called a:

Student data contained on an enrollment form would be represented on a data-flow diagram as a:

A data-flow diagram (DFD) is a graphical tool that allows analysts to illustrate the flow of data in an information system.

Sources and sinks are internal to the system.

Techniques used for modeling system logic include:

The lowest-level data-flow diagrams are called level-0 diagrams.

Completeness, consistency, timing, iterative development, and primitive DFDs are guidelines for drawing DFDs.

Match each of the data-flow diagramming symbols with corresponding examples.(Answers may occur more than once.) -Teller

Data-flow diagrams evolve from the more general to the more detailed as current and replacement systems are better understood.

Match each of the following terms with its description. -The lowest level of decomposition for a data-flow diagram

For each of the following statements, answer "a" if the statement is a true data-flow diagramming rule, and answer "b" if the rule is false. -A data flow cannot go directly back to the same process it leaves.

Briefly discuss how DFDs can be used as analysis tools.

Match each of the data-flow diagramming symbols with corresponding examples.(Answers may occur more than once.) -Generate paycheck

Double-ended arrows are used to represent data flowing in both directions.

Which of the following is NOT a true statement regarding data flows?

Match each of the following terms with its description. -The extent to which information contained on one level of a set of nested data-flow diagrams is also included on other levels

A file folder containing orders would be represented on a data-flow diagram as a:

Which of the following is NOT a process modeling deliverable?

DFD cohesion means your DFDs include all of the necessary components for the system you are modeling.

Match each of the data-flow diagramming symbols with corresponding examples.(Answers may occur more than once.) -Customer