Flashcards in LO5 Flow of Information Deck (9)
What is Qualitative Data?
Descriptive data, often composed of text.
What is Quantitative Data?
Measured data, often in the form of numbers, percentages or statistics
What is a level 0 Data Flow Diagram
Level 0 data flow diagrams show the transfer of data in a simple manner.
Commonly Generalised and not shown separately for a more basic overview.
What is a Level 1 Data Flow Diagram?
Level 1 data flow diagrams show the transfer of data in a more detailed manner. Processes are shown separately, for a more complex and realistic overview.
Impacts that Affect the Flow of Information?
Information not being filled incorrectly.
Computer system failure.
Breakdowns in human communication.
What does the arrow represent in a DFD?
What does the rectangle with soft edges represent in a DFD?
What does the rectangle with sharp edges represent in a DFD?