Unit 2, 5.2 data flow diagrams

In data flow diagrams, circles are used to represent processes that take data inflows and transform them to information outflows.

• True
• False

Flowcharts are biased toward representing the physical characteristics of the system, while data flow diagrams can omit the physical system attributes.

• True
• False

One difference between system flowcharts and data flow diagrams is that system flowcharts have numerous different types of symbols and data flow diagrams have just four types of symbols.

• True
• False

In the data flow diagram (DFD), there are 4 parts. The way the data is collated are called...

• External entitles

• Processes

• Data stores

• Data flows

In the data flow diagram (DFD). Any real world stores of data, paper or digital are called...

• External entitles

• Processes

• Data stores

• Data flows

In the data flow diagram (DFD). The arrows represent which way the data goes (in or out), these are called...

• External entitles

• Processes

• Data stores

• Data flows

This is the symbol for

• External entitles

• Processes

• Data stores

• Data flows

This is the symbol for

• External entitles

• Processes

• Data stores

• Data flows

This is the symbol for

• External entitles

• Processes

• Data stores

• Data flows

This is the symbol for

• External entitles

• Processes

• Data stores

• Data flows