Chapter08 - Chapter 8 Structuring System Requirements:...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
Chapter 8 Structuring System Requirements: Process Modeling 169 Chapter 8 Structuring System Requirements: Process Modeling True-False Questions 1. A data flow diagram is a graphical tool that allows analysts to illustrate the flow of data in an information system. Answer : True Difficulty : Med Reference : p. 238 2. Logic modeling graphically represents the processes that capture, manipulate, store, and distribute data between a system and its environment and among components within a system. Answer : False Difficulty : Med Reference : p. 239 3. Data flow diagramming is one of several structured analysis techniques used to increase software development productivity. Answer : True Difficulty : Easy Reference : p. 239 4. A primitive level data flow diagram is the first deliverable produced during requirements structuring. Answer : False Difficulty : Med Reference : p. 240 5. Data flow diagrams evolve from the more general to the more detailed as current and replacement systems are better understood. Answer : True Difficulty : Med Reference : p. 241 6. A data flow represents data in motion, moving from one place in the system to another. Answer : True Difficulty : Med Reference : p. 241 7. On a data flow diagram, a check and payment coupon are represented as a data store. Answer : False Difficulty : Med Reference : p. 241 8. A course schedule request is represented on a data flow diagram as a data flow. Answer : True Difficulty : Med Reference : p. 241 9. Assume shipment data is entered into a logbook once shipments are received at the company’s warehouse; the logbook is represented on a data flow diagram as a sink. Answer : False Difficulty : Med Reference : p. 241 10. Assume your local veterinarian records information about each of his patients on patient medical history forms; the collection of medial history forms is represented on a data flow diagram as a data store. Answer : True Difficulty : Hard Reference : p. 241 11. The calculation of a student’s grade is represented on a data flow diagram as a data flow.
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
170 Structuring System Requirements: Process Modeling Answer : False Difficulty : Med Reference : p. 242 12. The determination of which items are low in stock is represented on a data flow diagram as a process. Answer : True Difficulty : Med Reference : p. 242 13. Sources and sinks are internal to the system. Answer : False Difficulty : Med Reference : p. 242 14. When constructing data flow diagrams, you should show the interactions that occur between sources and sinks. Answer : False Difficulty : Med Reference : p. 242 15. The data a sink receives and often what data a source provides are fixed. Answer : True Difficulty : Hard Reference : p. 242 16. A Web site’s customer is represented as a source on a data flow diagram. Answer
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 24

Chapter08 - Chapter 8 Structuring System Requirements:...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online