Chapter 4—Documenting Information SystemsTRUE/FALSE1. Flowcharts are commonly used in financial audits, business process reengineering and security review engagements.2. Data flow diagrams portray a business processes’ activities, stores of data, and flows of data among those elements.3. Data flow diagrams present a comprehensive picture of the management, operations, information systems and process controls embodied in business processes.4. A data flow diagram is a graphical representation of a system, which depicts the system’s components, data flows and the sources, destinations and storage of data.5. System flowcharts use only four symbols.6. Systems documentation is used to understand, explain, evaluate, and improve complex business processes, information systems, and internal controls.7. In a data flow diagram, a bubble symbol shown below depicts a function or a process within which incoming data flows are transformed into outgoing data flows.8. The advantage of a physical data flow diagram versus a logical data flow diagram is that we can concentrate on the functions that a system performs.9. In a data flow diagram, a square represents an internal entity.10. In a data flow diagram, two parallel lines represent the data store symbol.11. The following symbol represents general purpose input-output.12. In a data flow diagram, the following symbol represents a computer process.13. The following symbol represents a manual process14. The following symbol represents a disk15. The following symbol represents a paper file.16. The following symbol represents a computer process17. In a data flow diagram, an external entity symbol portrays a source or a destination (sink) outside the system.18. A context diagram is the top-level diagram in a series of data flow diagrams representing an information system and it shows the flows into and out of the system of interest and into and out of external entities.19. Internal entities are those entities inside the system that send data to, or receive data from, the system.20. Internal entities are those persons, places, or things outside our system that send data to, or receive data from, our system.21. An external entity is a person, place, or thing within the system that transforms data.22. A physical data flow diagram uses bubbles to specify where, how, and by whom a system's processes are accomplished.23. When the context diagram and the level 0 diagram reflect the equivalent external data flows, the two diagrams are said to be balanced.24. The successive subdivision, or exploding, of logical data flow diagrams called bottom up partitioning.25. A systems flowchart is a graphical representation of both the physical and logical features of an information system.26. Processes that handle other-than-normal situations are called exception routines.27. Information processing activities including retrieving data from a file, transforming data, or filing data.28. An acceptance stub is a data flow that leaves a bubble but does not go to any other bubble or file and indicates processing that is performed in other than normal situations.29. In an enterprise system, we would have one data store/disk symbol that would be labeled “enterprise database” instead of two or more data store symbols.30. When we convert to an enterprise system, reengineered processes often result from the installation and can cause changes throughout the systems flowcharts.MULTIPLE CHOICE1. A symbol used in data flow diagrams to depict an entity or process within which incoming data flows are transformed into outgoing data flows is a(n):a. data flow symbolb. external entity symbolc. bubble symbold. file symbol2. A data flow diagram could contain each of the following symbols except:a. a bubble or circleb. a non-square rectanglec. a squared. a curved line with arrow head3. Which of the following data flow diagram symbols is represented by two parallel lines?a. data flow symbolb. external entity symbolc. sink symbold. file symbol4. Which data flow diagram symbol portrays a source or destination of data outside the system?a. data flow symbolb. external entity symbolc. bubble symbold. file symbol5. Which data flow diagram symbol is usually portrayed with a circle?a. data flowb. data storec. external entityd. process bubble6. Which data flow diagram symbol is usually portrayed with a square?a. data flowb. data storec. external entityd. process bubble7. Which data flow diagram symbol is usually portrayed with an arrow?a. data flowb. data storec. external entityd. process bubble8. In data flow diagrams describing the accounting information system of a manufacturing company, the company’s bank is most likely represented as a(n):a. data flowb. data storec. external entityd. process bubble9. In data flow diagrams describing the accounting information system of a consulting firm, a customer is most likely represented as a(n):a. data flowb. data storec. external entityd. process bubble10. In data flow diagrams describing the accounting information system of a medical practice, a patient is most likely represented as a(n):a. data flowb. data storec. external entityd. process bubble11. In data flow diagrams describing the accounting information system of a medical practice, a patient is most likely represented as a(n):a. data flowb. data storec. external entityd. process bubble12. Those entities which perform no information processing activities for the system are called:a. external entitiesb. internal entitiesc. boundary entitiesd. environmental entities13. Which symbol can be either an entity or a process depending on the type of DFD?a. bubble symbolb. external entity symbolc. data flow symbold. file symbol14. Which of the following is the least detailed of the data flow diagrams?a. logical data flow diagramb. systems flowchartc. context diagramd. physical data flow diagram15. In a physical data flow diagram, this is something within the system that transforms data.a. data flowb. data storec. external entityd. internal entity16. In a physical data flow diagram, a bubble or circle could be used to specify each of the following except:a. where a process is performedb. how a process is performedc. by whom a process is performedd. what process is performed17. Which type of data flow diagram specifies where, how, and by whom a system's processes are performed?a. context diagramb. physical data flow diagramc. logical data flow diagramd. systems flowchart18. A person, place, or thing