# Match each of the key terms above with the definition that...

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Chapter 5 / Exercise 4
Systems Analysis and Design
Tilley
Expert Verified
System Design and Analysis Professor: Jyhcheng Liu Chapter 7 Structuring system process requirements KEY TERMS 1. Action stubs 2. Balancing 3. Condition stubs 4. Context diagram 5. Data flow diagram (DFD) 6. Data Store 7. Decision table 8. DFD completeness 9. DFD consistency 10. Functional decomposition 11. Gap analysis 12. Indifferent condition 13. Level-0 diagram 14. Level-n diagram 15. Primitive DFD 16. Process 17. Rules 18. Source/sink 19. 20. Match each of the key terms above with the definition that best fits it 21. 22. Data flow diagram (DFD) A picture of the movement of data between external entities and the processes and data stores within a system 23. Action stubs The part of a decision table that lists the actions that result for a given set of conditions 24. Balancing The conservation of inputs and output to a DFD process when that process is decomposed to a lower level 25. Level-0 diagram A DFD that represents a system’s major processes, data flows, and data stores at a high level of detail 26. Source/sink The origin and/or destination of data; sometimes referred to as external entities. 27. Indifferent condition In a decision table, a condition whose value does not affect which actions are taken for two or more rules 28. Context diagram An overview of an organizational system that shows the system boundary, external entities that interact with the system, and the major information flows between the entities and system 29. Primitive DFD The lowest level of decomposition for a DFD 30. DFD completeness The extent to which all necessary components of a DFD have been included and fully described 31. Decision table A matrix representation of the logic of a decision; it specifies the possible conditions for the decision and the resulting actions 32. DFD consistency The extent to which information contained on one level of a set of nested DFDs is also included on the other levels 33. Level-n diagram A DFD that is the result of n nested decompositions of a series of subprocesses from a process on a level-0 diagram
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Chapter 5 / Exercise 4
Systems Analysis and Design
Tilley
Expert Verified
34. Condition stubs That part of a decision table that lists the conditions relevant to the decision. 35. Process The work of actions performed on data so that they are transformed, stored, or distributed 36. Data store Data at rest, which may take the form of many different physical representations. 37. Gap analysis That process of discovering discrepancies between two or more sets of DSFs or discrepancies within a single DFD. 38. Rules That part of a decision table that specifies which actions are to be followed for a given set of conditions. 39. Functional decomposition An iterative process of breaking the description of a system down into finer and finer detail, which creates a set of charts in which one process on a given chart is explained in greater detail on another chart.