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AIS Chapter 3
Terms in this set (13)
A DFD is a representation of?
flow of data in an organization
Documentation methods such as DFD's, BPD, or flowchart save both time and money, adding value to an organization.
Which of the following statements is FALSE?
DFD's help convey the timing of events (DFD's show data movement, but not necessarily the timing of the movement)
A DFD consists of the following four basic elements: data sources and destinations, data flows, transformation processes, and data sources. Each is represented on a DFD by a different symbol.
All of the following are guidelines that should be followed in the naming DFD data elements EXCEPT:
name only the most important DFD elements: all data elements should be named with the exception of data flows into data stores, when the inflows and outflows make naming the data store redundant
The documentation skills that accounts require vary with their job function. However, all accountants should at least be able to do which of the following?
read documentation codetermine how the system works: all accountants should at least be able to read and understand system documentation
Which of the following systems is FALSE?
a system flow chart is a narrative representation of an information system. (a flow chart is GRAPHICAL representation of an information system)
Which of the following flowcharts illustrates the flow of data among areas of responsibility in an organization?
document flowcharts: traces the life of responsibility within an organization
All of the following are recommended guidelines for making flowcharts more readable, clear, concise, consistent, and understandable EXCEPT:
flow chart all data flows, especially exceptions procedures and error routines: including these clutter the chart and make it difficult to understand and read
How are data sources and destinations represented in a data flow diagram?
as a square: figure 3-1
meaning there are zero meaningful decimal points (1.0, 2.0, 3.0, etc.)
meaning there is one meaningful decimal point
(1.1, 2.1, 3.1, etc.)
meaning there is two meaningful decimal points
(2.21, 2.22, 2.23, etc.)
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