Question 1

Data flow diagrams are useful for modeling processes in __________.

Accepted Answer

The answer of Data flow diagrams are useful for modeling...

Question 2

Learning the mechanics of drawing __________ is important.

Accepted Answer

The answer of Learning the mechanics of drawing __________ is...

Question 3

__________ is the process of discovering discrepancies between two or more sets of data flow diagrams or discrepancies within a single DFD.

Accepted Answer

The answer of __________ is the process of discovering discrepancies...

Question 4

An __________ represents a data flow.

Accepted Answer

The answer of An __________ represents a data flow....

Question 5

A __________ is a DFD that is the result of n nested decomposition of a series of subprocesses from a process on a level-0 diagram.

Accepted Answer

The answer of A __________ is a DFD that is...

Question 6

A __________ is the lowest level of decomposition for a data flow diagram.

Accepted Answer

The answer of A __________ is the lowest level of...

Question 7

A __________ is a data flow diagram of the scope of an organizational system that shows the system boundaries,external entities that interact with a system,and the major information flows between entities and the system.

Accepted Answer

The answer of A __________ is a data flow diagram...

Question 8

__________ is the origin and/or destination of data.

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The answer of __________ is the origin and/or destination of...

Question 9

__________ is an iterative process of breaking the description of a system down into finer and finer detail,which creates a set of charts in which one process on a given chart is explained in greater detail on another chart.

Accepted Answer

The answer of __________ is an iterative process of breaking...

Question 10

A __________ is a data flow diagram that represents a system's major processes,data flows,and data stores at a high level of detail.

Accepted Answer

The answer of A __________ is a data flow diagram...

Question 11

__________ on a DFD have unique names.

Accepted Answer

The answer of __________ on a DFD have unique names....

Question 12

A __________ is a picture of the movement of data between external entities and the processes and the data stores within a system.

Accepted Answer

The answer of A __________ is a picture of the...

Question 13

In the DeMarco and Yourdon model,the symbol for a data store is __________.

Accepted Answer

The answer of In the DeMarco and Yourdon model,the symbol...

Question 14

If a data flow appears on a higher-level DFD but not on lower levels,this situation violates the __________ guideline.

Accepted Answer

The answer of If a data flow appears on a...

Question 15

The five guidelines for drawing DFDs include __________,__________,__________,the __________,and __________.

Accepted Answer

The answer of The five guidelines for drawing DFDs include...

Question 16

If your DFD contains data flows that do not lead anywhere,then your DFD violates the __________ guideline.

Accepted Answer

The answer of If your DFD contains data flows that...

Question 17

The symbol for sources/sinks is a __________.

Accepted Answer

The answer of The symbol for sources/sinks is a __________....

Question 18

__________ is the extent to which all necessary components of a data flow diagram have been included and fully described.

Accepted Answer

The answer of __________ is the extent to which all...

Question 19

__________ is 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

The answer of __________ is the extent to which information...

Question 20

__________ is the conservation of inputs and outputs to a data flow diagram process when that process is decomposed to a lower level.

Accepted Answer

The answer of __________ is the conservation of inputs and...

Quiz 7: Structuring System Process Requirements