Question 1

Context DFD is one of the deliverables for process modeling.

Accepted Answer

Context DFD (Data Flow Diagram) is a deliverable in process modeling as it is used to depict the scope of the system being modeled. It shows the flow of data into and out of the system, and also indicates the relevant external entities and data stores involved in the process.

Question 2

A ________ is a DFD that represents a system's major processes,data flows,and data stores at a high level of detail.
A)Level-1 diagram
B)Level-0 diagram
C)Level-2 diagram
D)Level-3 diagram

Accepted Answer

A Level-0 diagram in Data Flow Diagramming is a high-level overview that represents the system's major processes, data flows, and data stores, providing a simplified view without going into detailed subdivisions.

Question 3

________ are NOT a component of data flow diagram symbols.
A)Processes
B)Data stores
C)Data flows
D)Data programs

Accepted Answer

Data programs are not a component of data flow diagram symbols. The components of data flow diagram symbols are processes, data stores, and data flows.

Question 4

What is process modeling? What are the deliverables for process modeling?

Accepted Answer

The answer of What is process modeling? What are the...

Question 5

A ________ is used in both conventions for sources/sinks and has a name that states what the external agent is,such as Customer,Teller,EPA Office,or Inventory Control System.
A)Circle
B)Triangle
C)Rectangle
D)Square

Accepted Answer

The answer of A ________ is used in both conventions...

Question 6

________ is/are NOT a deliverable for process modeling.
A)Context DFD
B)DFDs of the system
C)Thorough descriptions of each DFD component
D)Inadequately decomposed diagrams

Accepted Answer

Inadequately decomposed diagrams are not deliverables for process modeling because they do not accurately represent the processes within the system. Context DFD, DFDs of the system, and thorough descriptions of each DFD component are all deliverables for process modeling as they provide a clear understanding of the processes and their relationships within the system.

Question 7

With only ________ symbols,you can use DFDs to represent both physical and logical information systems.
A)Four
B)Three
C)Five
D)Six

Accepted Answer

DFDs, or Data Flow Diagrams, use four symbols to represent processes, data flows, data stores, and external entities, allowing them to depict both physical and logical information systems effectively.

Question 8

________ is NOT a phase in a systems development life cycle.
A)Maintenance
B)Planning
C)Attributes
D)Design

Accepted Answer

Attributes are not a phase in a systems development life cycle. The common phases are planning, analysis, design, implementation, and maintenance.

Question 9

Because requirements determination and structuring are often parallel steps,DFDs evolve from the more general to the more detailed as current and replacement systems are better understood.

Accepted Answer

This statement is true. As requirements are determined and the current and replacement systems are better understood, the DFDs evolve from the more general to the more detailed.

Question 10

According to the DFD conventions,the data flow is always depicted by a(n)________.
A)Rectangle
B)Circle
C)Arrow
D)Triangle

Accepted Answer

The data flow in a DFD is always depicted by an arrow, indicating the direction of the flow from one process to another or from a data store to a process. Rectangles are used to represent processes, circles are used to represent external entities or sources/sinks, and triangles are not typically used in DFDs.

Question 11

DFDs do not provide notation but illustrate important concepts about the movement of data between manual and automated steps.

Accepted Answer

This statement is false. DFDs do provide notation, such as symbols for processes, data stores, and data flows. The symbols and notations used in a DFD help to illustrate concepts about the movement of data between manual and automated steps.

Question 12

No process can have only ________.It would be making data from nothing (a miracle).If an object has only outputs,then it must be a source.
A)Sources
B)Sinks
C)Inputs
D)Outputs

Accepted Answer

A process cannot have only outputs because it would imply creating data from nothing, which is not possible.

Question 13

What is a DFD? Why are DFDs used?

Accepted Answer

The answer of What is a DFD? Why are DFDs...

Question 14

A ________ is a picture of the movement of data between external entities and the processes and data stores within a system.
A)Process flow diagram
B)Data flow diagram
C)Data diagram
D)Procedure flow diagram

Accepted Answer

A data flow diagram (DFD) is a graphical representation of the flow of data through an information system. It shows how information enters and exits the system, what happens to it along the way, and where it is stored. It is commonly used to illustrate the interactions between different parts of a system and is particularly useful for documenting complex processes.

Question 15

When two ________ have the same data flow name,you must be careful that these flows are exactly the same.
A)Rectangles
B)DFDs
C)Arrows
D)Processes

Accepted Answer

Arrows in Data Flow Diagrams (DFDs) represent data flows. If two arrows have the same data flow name, they must represent the same data being transferred, so it's important to ensure they are identical to avoid confusion.

Question 16

A ________ is the work or actions performed on data so that they are transformed,stored,or distributed.
A)Process
B)Data store
C)Flowchart
D)Data flow

Accepted Answer

A process refers to a sequence of tasks or steps that are performed on data to transform or distribute it. It involves defining the inputs, the tasks to be performed, and the outputs that result from those tasks. Data stores refer to physical or digital repositories where data is kept. Flowcharts are graphic representations of a process, and data flows refer to the movement of data between different processes or data stores. Therefore, the best choice for the given question is A) Process.

Question 17

A data flow diagram (DFD)is a picture of the movement of data between external entities and the processes and data stores within or outside a system.

Accepted Answer

The answer of A data flow diagram (DFD)is a picture...

Question 18

A ________ can be best understood as data in motion,moving from one place in a system to another.
A)Process
B)Data flow
C)Data store
D)Data source

Accepted Answer

A data flow represents the journey of data as it moves through a system, from its initial source to its ultimate destination. It is a graphical representation of the movement and transformation of data within a system, showing where data is generated, where it is stored or processed, and where it is consumed. Process, data store, and data source are all components of a system that interact with data flows, but they are not defined as data in motion themselves.

Question 19

A ________ is the origin and/or destination of the data,and these are sometimes referred to as external entities because they are outside the system.
A)Data graph
B)Data flow
C)Process
D)Source

Accepted Answer

The origin and/or destination of the data is referred to as a source in a data flow diagram (DFD). Option A is incorrect as a data graph does not exist in DFD. Option B refers to the movement of data between processes, not the origin/destination of data. Option C refers to a specific step or action within the system, not the source of data.

Question 20

Flowcharting has been criticized by proponents of structured analysis and design because it is too ________.
A)Geometrically oriented
B)Diagrammatic
C)Physically oriented
D)Methodological

Accepted Answer

Flowcharting has been criticized for being too physically oriented because it focuses on the physical flow of data and processes rather than the logical structure, which is emphasized in structured analysis and design.

Quiz 7: Structuring System Process Requirements

Context DFD is one of the deliverables for process modeling.

A ________ is a DFD that represents a system's major processes,data flows,and data stores at a high level of detail.

________ are NOT a component of data flow diagram symbols.

What is process modeling? What are the deliverables for process modeling?

A ________ is used in both conventions for sources/sinks and has a name that states what the external agent is,such as Customer,Teller,EPA Office,or Inventory Control System.

________ is/are NOT a deliverable for process modeling.

With only ________ symbols,you can use DFDs to represent both physical and logical information systems.

________ is NOT a phase in a systems development life cycle.

Because requirements determination and structuring are often parallel steps,DFDs evolve from the more general to the more detailed as current and replacement systems are better understood.

According to the DFD conventions,the data flow is always depicted by a(n) ________.

DFDs do not provide notation but illustrate important concepts about the movement of data between manual and automated steps.

No process can have only ________.It would be making data from nothing (a miracle) .If an object has only outputs,then it must be a source.

What is a DFD? Why are DFDs used?

A ________ is a picture of the movement of data between external entities and the processes and data stores within a system.

When two ________ have the same data flow name,you must be careful that these flows are exactly the same.

A ________ is the work or actions performed on data so that they are transformed,stored,or distributed.

A data flow diagram (DFD)is a picture of the movement of data between external entities and the processes and data stores within or outside a system.

A ________ can be best understood as data in motion,moving from one place in a system to another.

A ________ is the origin and/or destination of the data,and these are sometimes referred to as external entities because they are outside the system.

Flowcharting has been criticized by proponents of structured analysis and design because it is too ________.