5.2 data flow diagrams (DFDs) || WELL- ENLIGHTENED
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Course
Dfds
Institution
Dfds
What can a data flow diagram be used for - Correct Answer During system investigations to record findings
To illstruate how a system will work
To outline the speficiafions of a new system
What is the sink in relation to data - Correct Answer Where the data goes to
What are the processe...
5.2 data flow diagrams (DFDs) || WELL- ENLIGHTENED
What can a data flow diagram be used for - Correct Answer During system investigations to record
findings
To illstruate how a system will work
To outline the speficiafions of a new system
What is the sink in relation to data - Correct Answer Where the data goes to
What are the processes within the data flow diagrams? - Correct Answer They do something with the
data
What are the data stores within the data flow diagrams ? - Correct Answer Any store of data on the
system
What are the data flows on the data flow diagram? - Correct Answer Data flow between entities and
processes
When drawing a level 1 Data flow diagram (DFD) how many input and outputs should there be per
external entity ? - Correct Answer One
When drawing a level 1 data flow diagram (DFD) what way should the data be flowing? - Correct Answer
In one direction
When drawing a level 1 data flow diagram (DFD) what should you ensure when drawing the data flows? -
Correct Answer That their labelled
When drawing a level 1 data flow diagram (DFD) what too things should you ensure are connected ? -
Correct Answer Data flows and processes
Two examples of external entities - Correct Answer Sources
Sinks
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