Data Flow Diagram Process

Data Flow Diagram (DFD) in the structured-systems analysis


A graphical representation of the flow of data through an information system by modeling its process aspects is called a “data flow diagram”, also known as DFD. A DFD is often used as a step for creating an overview of the system without going into detail. DFDs can also be used for the purpose of the visualization of data processing being used in the structured design. Each DFD shows the way each kind of information will be input to and output from some particular system as well as in what way the data will advance through this system. It is also important to mention the place where the data will be stored. It does not show information about the timing of process or information about whether processes will operate in sequence or in parallel.

“Flow Chart” can be also used for such purpose of illustrating a flow of some particular data and they can be used instead of the “data flow diagrams”. “Flow diagrams” in general can be “Entity Relationship Diagrams” (or “ERD”), “Unified Modeling Language” (or “UML”) diagrams, “Data Flows Diagrams” (or “DFD”), “Windows and Macintosh Graphics User Interface (GUI)” design diagrams as well as “Structured Systems Analysis and Design Method” (“SSADM”). One of the most popular among them is a “data flow diagram”. “DFD”, as it was already mentioned before, is simply a graphical representation of the "data flow" in an information system. With its help you can illustrate a system overview in outline using ConceptDraw PRO.

The “data flow diagram” can also be used for the illustration and so the visualization of the data processing in a structured design. All ConceptDraw PRO users can make any needed data flow diagram any time they want within only a short period of time. “Data flow diagrams” are very widely used nowadays and there is a reason for such usage: these diagrams show what particular kind of information can be input to as well as output from some particular system. These diagrams also show the way this data, which is about to be illustrated, can advance via this system. With the help of DFD you can also show where data can be stored.

Another name for “data flow diagrams” is “bubble charts”. There are “context-level data flow diagrams” which include a “Level 1 DFD” and they can be created in order to show some of the system’s details being modeled. The “Level 1 data flow diagrams” show the way some system is or can be divided into the smaller “sub-systems”, allowing to follow the way, in what each of these “sub-systems” deals with the “data flows”.

With the aid of the “data flow diagrams” you can always identify the internal data stores, which as a general rule have to be presented in a way of such diagram. These diagrams are the ones of the three perspectives of the “SSADM”. While creating such diagrams the sponsor of the project and the end user can be consulted at each of the stages of a system's evolution and it is always convenient to track this “evolution” with the help of such DFD, that is why using this type of diagram as a simple way of representing the operating system, as well as what it accomplishes with is a good way. You can also mention how the plans for this system can be implemented.

DF diagrams can be used for a purpose of providing the end user with the information about the inputting data, as well as the information in what the system can be developed both in analysis and design phases. There are different notations that can be used for drawing any of the needed data flow diagrams, mainly the “Gane and Sarson” and the “Yourdon and Coad” ones. You can use these notations for defining the different visual representations of the data flows, data stores, external entities as well as the other different processes.

“Logical Data Flow Diagram” can be also made in ConceptDraw PRO and it is useful for capturing the data flows, necessary for the system to operate, as well as describing the needed processes and the data required. “Physical Data Flow Diagram” is another type of “Data flow diagrams” which you can use to show the way in what some system is implemented at this very moment. “Physical Data Flow Diagram” is also known as a “Current Physical Data flow diagram”.

In general “Data flow diagrams” are well known and very commonly used for a reason of the need of representing some data flow in a system as a part of the “Structured Systems Analysis and Design Methodology” and these diagrams may consist of different components. These components are functions and processes, with the aid of which you can represent the actions happened in an information system. All of the main DFD elements are external entities, processes, data flow and data store. “Yourdon – de Marco” notation can be used for the purpose of illustrating the ”Data Flow Diagram” objects, which are interpreted in a way of processes transform the input data flows into the output data flows as well as data depositories serve them only for keeping the “ingoing” data and not to change them.

If you want to make any of the DFDs mentioned above, then everything you need is to download ConceptDraw PRO software and start using it. Having this application means having a great looking result after having very relaxing and entertaining process of creating any needed type diagrams, including all mentioned above. You can always use this software as well as the needed solution from ConceptDraw STORE application and you can be sure that your final result will look simply great as well as smart and professional drawings. The “Data Flow Diagrams Solution” can simplify your work of drawing the needed DFD and it definitely will be very helpful for those ConceptDraw PRO users, who intend to make a great looking and smart diagrams, including the “data flow” ones. The “Object Library” can be found in the “Data Flow Diagram Solution” from ConcepDraw STORE and it contains lots of design symbols, including all of the needed elements, such as icons, that can be used for your representing of the data flows, data storage, processes, objects as well as other data flow entities.

Data Flow Diagram (DFD) Solution

Example 1. Data Flow Diagram (DFD) Solution

The Data Flow Diagrams solution contains three vector stencils libraries with DFD symbols:

  • Data flow diagram (DFD);
  • DFD Gane-Sarson notation;
  • DFD Yourdon and Coad notation.

Use the Data Flow Diagrams solution to draw your own DFDs using the ConceptDraw PRO diagramming and vector drawing software.

DFD Process of account receivable

Example 2. DFD Process of account receivable

This example is created using ConceptDraw PRO enhanced with solution Data Flow Diagrams. It shows the process of account receivable.




Data Flow Diagrams Sample:

DFD Model of small traditional production enterprise
DFD Model
DFD Library - Design elements
DFD Library
Data flow diagrams
Data Flow Diagram
UML Class Diagram
UML Class Diagram
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TEN RELATED HOW TO's:

Data Flow Diagram

There are many ways to define the flow of information within a system. Structured-systems analysis method often uses data flow diagrams to show data flow, data storages and data processing visualization. These diagrams are easy to develop and quite useful. Here is a dataflow diagram presenting an example of the manufacturing process flow. The oval process shapes represent a process that controls data within the current system. The process may produce data or make some action based on data. Data flows are represented by lines. They show the movement of information through the system. The direction of the data flow is depicted by the arrow. The external entities are shown by rectangles. They represent the external entities interacting with the system. The data store objects (unclosed rectangles) are used to show data bases participating in a process flow.Data Flow Diagram
Picture: Data Flow Diagram
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Design Data Flow. DFD Library

A model of a system is defined as a set of hierarchical diagrams representing the asynchronous process of data transformation from the moment it is input to the system to the moment it is output to the user. To demonstrate how a process transforms the initial data, you should design a data flow diagram using a DFD Library included in ConceptDraw PRO Solution Park. Start your diagramming experience now! You can use this library of symbols related to data flow diagrams (DFD) to design data-oriented or process-oriented models along with data process diagrams. This vector objects library It is a part of ConceptDraw solution designed for data flow diagramming, along with corresponding samples and templates. A data flow diagram is a 2D flowchart that depicts the sequence of particular activities and operations operations and activities which is accompanied by the dynamic flow of some data.Design Data Flow. DFD Library
Picture: Design Data Flow. DFD Library
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Account Flowchart. Flowchart Examples

Create your own flow charts of computer or network system account processing using the ConceptDraw PRO diagramming and vector drawing software extended with the Cross-Functional Flowcharts solution from the Business Processes area of ConceptDraw Solution Park. The flow chart example shows the computer network system account processing.Account Flowchart. Flowchart Examples
Picture: Account Flowchart. Flowchart Examples
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Accounts Payable Process Flow Chart

Accounts Payable Process Flow Chart - ConceptDraw PRO diagramming and vector drawing software extended with Accounting Flowcharts Solution provides the useful tools that will help you create easily and quickly. The Accounts Payable Process Flow Chart is very popular and widely used type of accounting flowcharts. Now their designing is simple thanks to the Accounting Flowcharts Solution that provides the Accounting Flowcharts library of predesigned commonly-used shapes and a set of templates and samples.Accounts Payable Process Flow Chart
Picture: Accounts Payable Process Flow Chart
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Account Flowchart Stockbridge System. Flowchart Examples

Create your own flow charts of data processing systems using the ConceptDraw PRO diagramming and vector drawing software extended with the Cross-Functional Flowcharts solution from the Business Processes area of ConceptDraw Solution Park. This is a flowchart of a data processing system combining manual and computerized processing to handle accounts receivable, billing, and general ledger.
Picture: Account Flowchart Stockbridge System. Flowchart Examples
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Accounts Payable Flowchart

Accounts Payable Flowchart - There is nothing easier than do it in ConceptDraw PRO. ConceptDraw PRO diagramming and vector drawing software provides the Accounting Flowcharts Solution from the Finance and Accounting Area of ConceptDraw Solution Park. The Accounting Flowcharts Solution contains templates, samples and library of ready-to-use predesigned vector objects that will help you create: accounts payable flowchart, accounts payable process flow chart, accounting flowchart of any complexity quick and easy.Accounts Payable Flowchart
Picture: Accounts Payable Flowchart
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Accounting Flowchart Symbols

It doesn’t matter what kind of business you have, a bar or a gym, there are common concepts for any of them. One of those concepts is accounting, and to facilitate the work with the figures, you can use accounting flowchart symbols and create a clear and representative scheme. You can create flowchart for auditing, tax accounting and even for planning your own budget. A graphical tool for displaying successive processes is flowchart. This method is mostly suited to represent an accounting process. The sequence of steps in the accounting process usually consists of standard accounting procedures, that can be depicted by using a minimal number of symbols, applied for the basic flowcharting. The advanced opportunity to create professional Accounting Flow charts is provided by ConceptDraw Accounting Flowcharts solution. It includes contains a library of accounting flowchart symbols used when drawing the accounting process flow.Accounting Flowchart Symbols
Picture: Accounting Flowchart Symbols
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How to Create Flowcharts for an Accounting Information System

It can be tough to get straight into business papers and processes.Otherwise, you can learn how to create flowcharts for an accounting information system and visualize these documents. Accounting diagrams are clear and easy to understand for all the participants of the process. There are symbols used for creating accounting flowcharts using ConceptDraw PRO and its Accounting Flowcharts solution. Accounting flow charts are a special kind of flow charts. Actually a variety of flowcharts are often used to facilitate many aspects of a workflow of accounting department. Accounting flowcharts are utilized to support creating accounting documentation, to depict positions responsible for fulfillment of each phase of accounting workflow.Accounting Information System, this is flowchart maker
Picture: How to Create Flowcharts for an Accounting Information System
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Example of DFD for Online Store (Data Flow Diagram)DFD Example

Structured-systems analysis and design method uses data flow diagrams to represent the process of data flowing through a system. Talking about this might be useless without a proper example of DFD for online store (Data Flow Diagram). This DFD example shows all the distinctness that a diagram can bring into a scattered data structure. Data flow diagrams are used to show how data is processed within some business processes. Making DFD is a common practice for business process modeling and analysis. This diagram represents the online store business flow. It describes inputs and outputs within online selling process and depicts the interactions between its participants. This DF diagram can be used by system analysts to create an overview of a business, to study and discover its inherent strengths and weak points.Online Store Data Flow Diagram
Picture: Example of DFD for Online Store (Data Flow Diagram)DFD Example
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Why Flowchart Important to Accounting Information System?

The Accounting flowchart shows how information flows from source documents through the accounting records. The are based on the accounting procedures or processes. Flowcharts are used to represent accounting information in a system . There are special symbols which are used to create accounting flowcharts. Try conceptdraw flowcharting set of symbols to draw a professional charts.Payment Flowchart
Picture: Why Flowchart Important to Accounting Information System?
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