Exam 7: Using Data Flow Diagrams

arrow
  • Select Tags
search iconSearch Question
flashcardsStudy Flashcards
  • Select Tags

Data stores must always have data flow into them in a proper diagram.

(True/False)
4.9/5
(34)

The name of the data flow coming out of a process should be different than the name of the data flow going into the process.

(True/False)
4.9/5
(42)

Which of the following is not an advantage of using a physical model?

(Multiple Choice)
4.7/5
(39)

With a ________ approach, the diagrams move from general to specific.

(Multiple Choice)
4.7/5
(47)

A logical data flow diagram:

(Multiple Choice)
4.8/5
(40)

Ajax is a technique used to obtain data from a server and update large amounts of data using UML.

(True/False)
4.8/5
(35)

Data flows occurring simultaneously can be depicted doing just that through the use of ________ arrows.

(Multiple Choice)
4.7/5
(34)

When the first ________ diagram is made, inputs and outputs are specified and these remain constant throughout all of the following diagrams.

(Multiple Choice)
4.7/5
(43)

A logical data flow diagram focuses on how the business operates.

(True/False)
4.7/5
(35)

The data flow diagram graphically characterizes data processes and flows in a business system.

(True/False)
4.7/5
(33)

Which of the following is not a reason for partitioning processes into separate programs?

(Multiple Choice)
4.9/5
(39)

Transaction files are used to link all logical data flow diagram processes.

(True/False)
4.8/5
(35)

Each time an external company or system is involved in the activities of a Web site, the process that handles them must be left alone without any partitioning.

(True/False)
4.9/5
(38)

A physical data flow diagram shows how the system will be constructed.

(True/False)
4.9/5
(39)

Linear data flow from process to process is normal in higher level data flow diagrams.

(True/False)
4.7/5
(37)

An external entity is called a source or ________ of data, and is considered to be external to the study.

(Multiple Choice)
4.8/5
(41)

Partitioning data flow diagrams is the process of deciding which processes are manual procedures and which processes should be grouped into which computer programs.

(True/False)
4.9/5
(37)

The highest level data flow diagram is called Diagram 0.

(True/False)
4.8/5
(36)

Having separate Web forms to collect transaction data means that:

(Multiple Choice)
4.8/5
(36)

A transaction file links two processes that execute at different times.

(True/False)
4.9/5
(42)
Showing 41 - 60 of 80
close modal

Filters

  • Essay(0)
  • Multiple Choice(0)
  • Short Answer(0)
  • True False(0)
  • Matching(0)