Deck 4: Documenting Information Systems

Question 1

In a data flow diagram (DFD), a square represents an internal entity.

Answer 1

False

Question 2

In a data flow diagram (DFD), a bubble symbol shown below depicts an entity or a process within which incoming data flows are transformed into outgoing data flows.

Answer 2

True

Question 3

A customer is an example of an internal entity.

Answer 3

False

Question 4

A data flow diagram (DFD) is a graphical representation of a system, which depicts the system's components, data flows and the sources, destinations and storage of data.

Question 5

In a data flow diagram (DFD), an external entity symbol portrays a source or a destination of data outside the system.

Question 6

The following symbol represents a document.

Question 7

The following symbol represents a computer process.

Question 8

The following symbol represents a paper file.

Question 9

Internal entities do not perform any information processing activities.

Question 10

System flowcharts use only four symbols.

Question 11

The following symbol represents general purpose input-output.

Question 12

Data flow diagrams (DFDs) present a comprehensive picture of the management, operations, information systems and process controls embodied in business processes.

Question 13

The following symbol represents a disk data store

Question 14

A context diagram is a top-level diagram of a system that depicts the system and all its activities as a single bubble.

Question 15

Data flow diagrams (DFDs) depict a system's components; the data flows among the components; and the sources, destinations, and storage of data.

Question 16

Flowcharts are commonly used for new systems implementations, business process reengineering, finance function transformations, and assessments of internal controls.

Question 17

The following symbol represents a manual process

Question 18

In a data flow diagram (DFD), two parallel lines represent the data store symbol.

Question 19

Systems documentation is used to understand, explain, evaluate, and improve complex business processes, information systems, and internal controls.

Question 20

The advantage of a physical data flow diagram (DFD) versus a logical data flow diagram (DFD) is that we can concentrate on what activities a system is performing without having to specify how, where or by whom.

Question 21

Internal entities are included on data flow diagrams (DFDs) but not on systems flowcharts.

Question 22

An external entity is a person, place, or thing within the system that transforms data.

Question 23

When we convert to an enterprise system, reengineered processes often result from the installation and can cause changes throughout the systems flowcharts.

Question 24

External entities are persons, places, or things outside the context of the system.

Question 25

In a systems flowchart, two parallel lines represent the data store symbol.

Question 26

A systems flowchart is a graphical representation of both the physical and logical features of an information system.

Question 27

Systems flowcharts portray business process activities, stores of data, and flows of data among those elements without presenting the physical details of those elements.

Question 28

In an enterprise system, we would have one data store/disk symbol labeled "enterprise database" instead of two or more data store symbols.

Question 29

In a data flow diagram, a square represents a source or destination of data outside the system.

Question 30

Data flow diagrams (DFDs) portray a business process' activities, stores of data, and flows of data among those elements.

Question 31

There can be only one correct logical data flow diagram (DFD) for any system.

Question 32

On a systems flowchart the start/stop symbol can also be an external entity.

Question 33

Processes that handle other-than-normal situations are called exception routines.

Question 34

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.

Question 35

When the context diagram and the level 0 diagram have equivalent external data flows, the DFDs are said to be balanced.

Question 36

Internal entities are included on both data flow diagrams (DFDs) and systems flowcharts.

Question 37

The successive subdivision, or exploding, of logical data flow diagrams (DFDs) is called bottom up partitioning.

Question 38

The successive subdividing, or "exploding," of physical data flow diagrams (DFDs) is called top-down partitioning.

Question 39

Information processing activities retrieve data from storage, transform data, or file data.

Question 40

A physical data flow diagram (DFD) uses bubbles to specify where, how, and by whom a system's processes are accomplished.

Question 41

Which of the following data flow diagram (DFD) symbols is represented by two parallel lines?

A) data flow symbol
B) external entity symbol
C) internal entity symbol
D) data store symbol

Question 42

Which data flow diagram shows what activities the system is performing without having to specify how, where, or by whom the activities are accomplished?

A) context diagram
B) physical data flow diagram
C) systems flowchart
D) logical data flow diagram

Question 43

Which of the following is the least detailed of the data flow diagrams?

A) logical data flow diagram
B) systems flowchart
C) context diagram
D) physical data flow diagram

Question 44

In which of the following data flow diagrams does the bubble symbol represent a process and not the entire system?

A) context diagram
B) physical data flow diagram
C) logical data flow diagram
D) systems flowchart

Question 45

Which of the following data flow diagram (DFD) guidelines is correct?

A) include within the system context any entity that performs one or more information processing activities
B) read computer data stores from the process bubble that requires the data
C) include within the system context any entity in the system narrative
D) data flows should never go from higher- to lower-numbered bubbles

Question 46

A data flow diagram (DFD) could contain each of the following symbols except:

A) a bubble or circle
B) an octagon
C) a square
D) a curved line with an arrow head

Question 47

In a physical data flow diagram (DFD), a bubble or circle could be used to specify each of the following except:

A) where a process is performed
B) how a process is performed
C) by whom a process is performed
D) what process is performed

Question 48

In the top-down partitioning of process 3.0, the next level's process bubbles would be labeled (assuming there are four subprocesses):

A) 1.3, 2.3, 3.3, 4.3
B) 3.A, 3.B, 3.D, 3.D
C) 3.1, 3.2, 3.3, 3.4
D) 3.1.1, 3.1.2, 3.1.3, 3.1.4

Question 49

A person, place, or thing within a system that transforms data is called:

A) external entity
B) data store
C) internal entity
D) Boundary

Question 50

A symbol used in data flow diagrams (DFDs) to depict an entity or process within which incoming data flows are transformed into outgoing data flows is a(n):

A) data flow symbol
B) external entity symbol
C) bubble symbol
D) data store symbol

Question 51

Which symbol can be either an entity or a process depending on the type of data flow diagram (DFD)?

A) bubble symbol
B) external entity symbol
C) data flow symbol
D) data store symbol

Question 52

Which data flow diagram (DFD) symbol is portrayed by two parallel lines?

A) data flow
B) data store
C) external entity
D) internal entity or process

Question 53

Which data flow diagram (DFD) symbol portrays a source or destination of data outside the system?

A) data flow symbol
B) external entity symbol
C) bubble symbol
D) data store symbol

Question 54

Which type of data flow diagram specifies where, how, and by whom a system's processes are performed?

A) context diagram
B) physical data flow diagram
C) logical data flow diagram
D) systems flowchart

Question 55

Which of the following systems flowcharting guidelines is correct?

A) documents or reports printed by a central computer should first be show in that computer's column
B) sequential process steps, with no intervening delay, should be shown as one process
C) divide the flowchart into columns, one for each internal entity, and label each column
D) use a manual process symbol to show the sending or filing of a document

Question 56

A _______________ depicts a system's infrastructure.

A) context diagram
B) physical DFD
C) logical DFD
D) system flowchart

Question 57

In a physical data flow diagram (DFD), this is something within the system that transforms data.

A) data flow
B) data store
C) external entity
D) internal entity

Question 58

Those entities which perform no information processing activities for the system are called:

A) external entities
B) internal entities
C) boundary entities
D) environmental entities

Question 59

Which data flow diagram (DFD) symbol is usually portrayed with an arrow?

A) data flow
B) data store
C) external entity
D) process or internal entity

Question 60

Which data flow diagram (DFD) symbol is usually portrayed with a square?

A) data flow
B) data store
C) external entity
D) process or internal entity

Question 61

In drawing a context diagram, we should include:

A) only exception routines
B) only error routines
C) only normal processing routines
D) only normal processing and exception routines

Question 62

The data flows in a logical data flow diagram (DFD) show:

A) how the data are transmitted
B) where the data are transmitted
C) the nature of the data being transmitted
D) who transmits the data

Question 63

Which of the following systems flowcharting symbols descriptions is incorrect?

A) general purpose input-output
B) manual process
C) multiple-page document
D) punched card

Question 64

Bubbles are labelled with nouns in

A) physical data flow diagrams
B) logical data flow diagrams
C) both physical and logical data flow diagrams
D) neither physical nor logical data flow diagrams

Question 65

All of the following are "guidelines" for grouping activities in a level 0 DFD except:

A) group activities if they occur in the same place and at the same time
B) group activities if they occur at different times in the same place
C) group activities if they occur at the same time but in different places
D) group activities that seem to be logically related

Question 66

When two data flow diagrams (DFDs) have equivalent external data flows, we say that the two data flow diagrams are:

A) congruent
B) similar
C) balanced
D) equal

Question 67

An information processing activity could be any of the following except:

A) sending or receiving data between entities
B) document preparation
C) data entry
D) data verification

Question 68

Information processing activities include:

A) only automated activities
B) activities that retrieve, transform, and file data
C) the sending of data between entities
D) operational activities

Question 69

On a logical data flow diagram (DFD), data flows:

A) always go from a higher-numbered to a lower-numbered bubble
B) never go from a higher-numbered to a lower-numbered bubble
C) can go in either direction as needed
D) must go from a bubble to a square

Question 70

Why do auditors and systems analysts use systems documentation?

A) to understand, explain, and improve complex systems
B) only to provide justification to management for systems investments
C) to reduce the number and amount of external entities
D) to eliminate evidence to be collected

Question 71

On a systems flowchart, a solid line with an arrow indicates a(n):

A) batch total
B) telecommunications link
C) off-page connector
D) logical flow

Question 72

A systems flowchart varies from a data flow diagram (DFD) because it:

A) only represents the information system
B) only represents the operations system
C) only represents the management system
D) represents the management system, the operations system, and the information system

Question 73

Which of the following systems flowcharting symbol descriptions is incorrect?

A) Disk
B) computer process
C) manual process
D) Display

Question 74

Which of the following statements related to the construction of data flow diagrams (DFDs) is false?

A) The level 0 diagram is the next level down from the context diagram.
B) If the level 0 diagram has one arrow going into bubble number 1.0 and two arrows leaving bubble number 1.0, then diagram 1.0 will show one arrow entering and two arrows leaving.
C) Sources and destinations are depicted by parallel horizontal lines, between which the name of the entity is shown.
D) Arrows represent a pathway for data.

Question 75

A process in which successive layers of data flow diagrams (DFDs) are constructed by "exploding" the bubbles on a less detailed DFD to show more detailed data flows is called:

A) top-down partitioning
B) serial expansion
C) balanced construction
D) expanded data flows

Question 76

In a logical data flow diagram (DFD) for a cash receipts system, each of the following labels might appear in a bubble except:

A) cashier
B) capture cash receipt
C) prepare deposit
D) record customer payment

Question 77

On a systems flowchart, computer processing is represented by a:

A) Square
B) Trapezoid
C) Rectangle
D) Parallelogram

Question 78

How many circles (bubbles) are included in a correctly drawn context diagram?

A) Zero
B) One
C) Three
D) Between five and seven bubbles

Question 79

Which of the following systems flowcharting symbols descriptions is incorrect?

A) Tape
B) on-page connector
C) start/stop
D) paper file

Question 80

On a systems flowchart, a paper file is represented by a:

A) Triangle
B) Cylinder
C) Rectangle
D) Pentagon