What best describes a DFD
data flow. Data in motion, moving from one place in a system to another, best describes a: data flow. Data at rest, which may take the form of many different physical representations, best describes a: data store.
Which of the following documents is most likely to be used in the expenditure cycle
Which of the following documents is most likely to be used in the expenditure cycle? c. receiving report[Correct. A receiving report is an expenditure cycle document that is used to record the receipt of goods from suppliers.
Which of the following flowcharts illustrates the flow of data among areas of responsibility in an organization *
8. Which of the following flowcharts illustrates the flow of data among areas of responsibility in an organization? d. document flowchart[Correct.
What are the two data processing approaches used in modern systems
______________________________________ are the two data processing approaches used in modern systems. ANS: Batch processing and real-time processing 4.
What are DFD rules
DFD rules and tips
- Each process should have at least one input and an output.
- Each data store should have at least one data flow in and one data flow out.
- Data stored in a system must go through a process.
- All processes in a DFD go to another process or a data store.
What is decomposition What is balancing how can you determine if DFDs are not balanced
You can determine if a set of DFDs are balanced or not by observing whether or not a process that appears in a level-n diagram has the same inputs and outputs when decomposed for a lower-level diagram.
Is the work or actions performed on data so that they are transformed stored or distributed
A process is the work or actions performed on data so that they are transformed, stored, or distributed. When modeling the data processing of a system, it does not matter whether a process is performed manually or by a computer.
Is a flowchart
A flowchart is a picture of the separate steps of a process in sequential order. It is a generic tool that can be adapted for a wide variety of purposes, and can be used to describe various processes, such as a manufacturing process, an administrative or service process, or a project plan.
Is a graphical tool to represent the processes that capture manipulate store and distribute data between a system and its environment
A data flow diagram is a graphical tool that allows analysts to illustrate the flow of data in an information system. Logic modeling graphically represents the processes that capture, manipulate, store, and distribute data between a system and its environment and among components within a system.
Which of the following flowchart shows the relationship among the input processing and output of an information system
System flowcharts depict the relationships among the input, processing, and output of an AIS.
Which of the following is not a recommended guideline for making flowcharts more readable clear concise consistent and understandable
All of the following are recommended guidelines for making flowcharts more readable, clear, concise, consistent, and understandable except: Flowchart all data flows, especially exception procedures and error routines.
How is a DFD different from a flowchart quizlet
The purpose a flowchart is to present a graphical description of the flow of documents, relationships among input, processing, and output, or the sequence of logical operations in an information system or program. A DFD is limited to basic symbols and lines, and focuses on the flow and use of data.
Why we can use the data flow diagram
Data flow diagrams visually represent systems and processes that would be hard to describe in a chunk of text. You can use these diagrams to map out an existing system and make it better or to plan out a new system for implementation.
What is the purpose of a systems flowchart quizlet
A systems flowchart is a graphical representation of both the physical and logical features of an information system. Information processing activities retrieve data from storage, transform data, or file data. Internal entities are included on both data flow diagrams (DFDs) and systems flowcharts.
Which is the biggest advantage of the data flow approach over narrative explanations
The data flow approach has four chief advantages over narrative explanations of the way data move through the system: Freedom from committing to the technical implementation of the system too early. Further understanding of the interrelatedness of systems and subsystems.
What is a data flow diagram DFD quizlet
Data-Flow Diagram (DFD) a graphic that illustrates the movement of data between external entities and the processes and data stores within a system. Data Store. data at rest, which may take the form of many different physical representations. Process.
What is DFD in computer
A Data Flow Diagram (DFD) is a graphical representation of the “flow” of data through an information system (as shown on the DFD flow chart Figure 5), modeling its process aspects. Often it is a preliminary step used to create an overview of the system that can later be elaborated.
How do you describe an activity diagram
An activity diagram visually presents a series of actions or flow of control in a system similar to a flowchart or a data flow diagram. Activity diagrams are often used in business process modeling. They can also describe the steps in a use case diagram. Activities modeled can be sequential and concurrent.