Assignment

Question 1
In a data flow diagram, an open? ended rectangle is used to represent:
a process.
a data store.
a data stream.
a data source or destination.

Question 2
Data flow diagrams:
are different from system flowcharts since they focus on a logical view of the information system.
accomplish the same purpose as system flowcharts.
are useless for planning a new system.
are never used in analyzing an existing system.

Question 3
The task of providing greater detail in successive levels of data flow diagrams is called:
contexting.
decomposition.
pyramiding.
detailing.

Question 4
Flowcharting is a science, with strict rules and procedures.
False
True

Question 5
Like system flowcharts, data flow diagrams have levels which show varying amounts of detail.
True
False

Question 6
When an individual prepares a document flowchart, the names of the various organizational departments involved in the accounting information system should be listed:
along the left?hand margin of the flowchart.
in the title of the flowchart.
in the column headings of the flowchart.
along the right?hand margin of the flowchart.

Question 7
Process maps use circles and arrows as their primary symbols.
True
False

Question 8
All of these are guidelines for creating good data flow diagrams except:
show the most detail in the highest-level DFD.
even if a file is temporary, include it in your DFD.
each logical DFD should contain between 5 and 7 processing bubbles.
classify most of the final recipients of processed data as external entities.

Question 9
In most process maps, an arrow represents:
the process direction flow.
the flow of money through a cash register.
the tasks to perform in an accounting task.
the direction for reading the chart.

Question 10
A circle or bubble symbol in a data flow diagram is used to represent a "transformation process."
True
False.