Arrows represent a pathway for data. c. Sources and destinations are depicted by parallel horizontal lines, between which the name of the entity is shown. A systems flowchart varies from a data flow diagram (DFD) because it: a. only represents the information system b. only represents the operations system c. only represents the management system
c. Sources and destinations are depicted by parallel horizontal lines, between which the name of the entity is shown. A systems flowchart varies from a data flow diagram (DFD) because it:
The data flow diagram follows DFD guidelines. b. An arrow should never leave a bubble with no destination. c. Data should only flow from a data store. d. Data flow diagrams (DFDs) at this level should show the external entities.
b. A context diagram must have a least two external entities. c. The diagrams are not balanced. d. None of the above are true. c. The diagrams are not balanced.