Chapter 5 Quiz

What diagram will have sub-processes with numbers like 3.3.1, 3.3.2, 3.3.3 and also have flows coming in or going out that are not illustrated? A. Level 2 diagram B. Level 1 diagram C. Level 0 diagram D. Gantt diagram E. Context diagram

A. Level 2 diagram

A process model can : A. document both the as-is and the to-be system. B. be used to design the user interfaces in the to-be system. C. only document the as-is system. D. only document the to-be system.

A. document both the as-is and the to-be system.

Which part of a DFD shows the entire system and its environment but has only one process? A. Level 2 diagram B. Context Diagram C. Level 0 diagram D. Level 1 diagram

B. Context Diagram

What is an external entity? Check all that apply. A. The children of the parent process in the level 0 diagram. B. People who use the information from the system to perform other processes. C. A person, organization, organization unit or system that is external to the system, but interacts with it. D. A trigger to a use case. E. The glue that holds the processes together. F. An entity that provides data to the system or receives data from the system.

B. People who use the information from the system to perform other processes C. A person, organization, organization unit or system that is external to the system, but interacts with it. F. An entity that provides data to the system or receives data from the system.

A key attribute of logical process models is: A. models are created during a JAD. B. models describe processes without suggesting how they are conducted. C. models are created by the infrastructure analyst. D. models are based on implementing the if-then-else programming structure

B. models describe processes without suggesting how they are conducted.

If you show a process number 2 on your level 0 diagram, how would you label processes on the level 1 diagram for process number 2? A. 2-1, 2-2, 2-3 B. 2-A, 2-B, 2-C C. 2.1, 2.2, 2.3 D. 2A, 2B, 2C

C. 2.1, 2.2, 2.3

Which of the following statements is true regarding Context Diagrams? A. The context diagram shows all the major high-level processes of the system and how they relate to each other and to stored data. B. The context diagram depicts the physical process model. C. The context diagram shows the overall business process as a single process, and shows the data flows to and from external entities. D. The context diagram shows all the decision trees and decision logic as notes and branches.

C. The context diagram shows the overall business process as a single process, and shows the data flows to and from external entities.

A data flow diagram: A. is created through data modeling. B. focuses on the way data moves through the system. C. focuses on the processes or activities that are performed. D. is focused on physical models.

C. focuses on the processes or activities that are performed.

What part of a DFD has no data stores? A. A decomposition B. A decision table C. An external entity D. Context diagram

D. Context Diagram

You are creating a _________, if you create a diagram model for processes without regard to whether the process is computerized or a manual process A. A physical process model B. a user process model C. a UML system case model D. a logical process model

D. a logical process model

A "black hole" error on a DFD is when a process creates output without an input. True False

False

An external entity is a person, organization, organization unit, or system that is external to the system and does not interact with it. True False

False

The context diagram should show all the data stores of the new system. True False

False

A data flow should be named with a noun. True False

True

A well-constructed use case makes developing a data flow diagram fairly straightforward. True False

True