Example of DFD for Online Store (Data Flow Diagram)
DFD Example

Data flow diagrams (DFDs) reveal relationships among and between the various components in a program or system. DFDs are an important technique for modeling a system’s high-level detail by showing how input data is transformed to output results through a sequence of functional transformations.

ConceptDraw PRO allows you to draw a simple and clear example of DFD for Online Store using special libraries, provided by Data Flow Diagrams Solution:

  • Data flow diagram (DFD) library contains 15 symbols for drawing both context-level data flow diagram and Level 1 DFD.
  • DFD, Gane-Sarson notation library contains 12 symbols of Gane-Sarson DFD notation.
  • DFD, Yourdon and Coad notation library contains 22 symbols of Yourdon/DeMarco DFD notation.

    Data Flow Diagram Symbols

    Data Flow Diagram solution

    Pic 1. Data Flow Diagram solution

    This example was created in ConceptDraw PRO diagramming and vector drawing software using the Data Flow Diagrams Solution from the Software Development area of ConceptDraw Solution Park.

    This example shows the Data Flow Diagram for online store and interactions between the Visitors, Customers and Sellers, as well as Website Information and User databases.

    Online Store Data Flow Diagram

    Pic 2. Data Flow Diagram for Online Store

    To produce professional and standardized data flow diagrams, most analysts will turn to a specialist drawing software, that can automate certain processes and cater for presentation and file sharing needs. ConceptDraw PRO, extended with the Data Flow Diagram solution, is ideal for this scenario. Within the solution is a comprehensive vector stencil library, offering the full range of icons from both notation sets mentioned above. Features inherent to ConceptDraw PRO make the diagramming process simple and efficient — one click commands allow users to select and place icons, intuitively place connector arrows, and share their document in a range of presentation modes or file types.

    An added bonus is the wealth of learning material available, particularly in relation to data flow and process diagrams, and a number of other solutions that support similar topics.

    Adding the Data Flow Diagram solution to ConceptDraw PRO gives you a powerful tool to help analyze and devise data flows for any business process or system.





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    Data Flow Diagram Symbols. DFD Library

    Any information system receives data flows from external sources. In order to visualize them there is a list of data flow diagram symbols that describes how the system components cooperate. If you want to create a data flow diagram, ConceptDraw PRO Solution Park has DFD Library that contains both Yourdon and Gane-Sarson notations. This figure shows the content of vector libraries, delivered with ConceptDraw solution for data flow diagram (DFD). There are three libraries composed from about 50 vector objects used to make data flow diagrams. They include a complete set of objects utilized by Yourdon-Coad and Gane-Sarson notations - two primary notations that are apply for data flow diagramming. Also, one can discover additional "Data flow diagram (DFD)" library that provides a data flow diagram elements for designing level 1 and context-level data flow diagrams.Data Flow Diagram Symbols. DFD Library
    Picture: Data Flow Diagram Symbols. DFD Library
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    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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    ConceptDraw PRO ER Diagram Tool

    Database design is an important part of any project, as databases become more and more complex nowadays. To make the model more representative, entity relationship diagrams are widely used in software engineering area. These diagrams show sets of entities as rectangles connected via lines labeled with their cardinalities. This an example of the ER-diagram developed to store information regarding some online role-playing game. It includes three main elements of ER diagram: entities, relationships and attributes. The entities, attributes and relationships on this ER-diagram is depicted according to the Chen's notation. Chen's notation for Entity Relationship diagrams admits using of rectangles to depict entities, ovals for attributes and ,at least, diamonds to show relationships . ConceptDraw Entity-Relationship Diagrams solution was applied as ERD software to create this diagram.ER Diagram Tool. Chen ERD
    Picture: ConceptDraw PRO ER Diagram Tool
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    Process Flowchart

    When trying to figure out the nature of the problems occurring within a project, there are many ways to develop such understanding. One of the most common ways to document processes for further improvement is to draw a process flowchart, which depicts the activities of the process arranged in sequential order — this is business process management. ConceptDraw PRO is business process mapping software with impressive range of productivity features for business process management and classic project management. This business process management software is helpful for many purposes from different payment processes, or manufacturing processes to chemical processes. Business process mapping flowcharts helps clarify the actual workflow of different people engaged in the same process. This samples were made with ConceptDraw PRO — business process mapping software for flowcharting and used as classic visio alternative because its briefly named "visio for mac" and for windows, this sort of software named the business process management tools. This flowchart diagram shows a process flow of project management. The diagram that is presented here depicts the project life cycle that is basic for the most of project management methods. Breaking a project into phases allows to track it in the proper manner. Through separation on phases, the total workflow of a project is divided into some foreseeable components, thus making it easier to follow the project status. A project life cycle commonly includes: initiation, definition, design, development and implementation phases. Distinguished method to show parallel and interdependent processes, as well as project life cycle relationships. A flowchart diagram is often used as visual guide to project. For instance, it used by marketing project management software for visualizing stages of marketing activities or as project management workflow tools. Created with ConceptDraw PRO — business process mapping software which is flowcharting visio alternative or shortly its visio for mac, this sort of software platform often named the business process management tools.business process flowcharts, flowchart symbols, process flow diagram, workflow diagram, flowchart maker
    Picture: Process Flowchart
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    UML Component Diagram Online Shopping. This sample was created in ConceptDraw PRO diagramming and vector drawing software using the UML Component Diagram library of the Rapid UML Solution from the Software Development area of ConceptDraw Solution Park. This sample shows the concept of the online shopping and is used for the understanding of the online shopping processes, of the online shops working processes, for projection and creating of the online stores.UML Component Diagram Online Shopping
    Picture: UML Component Diagram Example - Online Shopping
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    Data Flow Diagram Model

    Developing a software project supposes architecture first. To make it proper, you can use data flow diagram model in your current project. The data flow diagram represents the Model of small traditional production enterprise that is made using Yourdon and Coad notation. It shows how the data is transfered through a process. According to the notation of Yourdon and Coad a process is represented by circles and data stores are drawn using parallel lines. This DFD was created using the ConceptDraw Data Flow Diagrams solution. Using this solution one can visualize data flow accordingly to the rules of two basic notations used for data flow modeling.DFD Model of small traditional production enterprise
    Picture: Data Flow Diagram Model
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    Interaction Overview Diagram

    UML Interaction Overview Diagram schematically shows a control flow with nodes and a sequence of activities that can contain interaction or sequence diagrams.UML Interaction Overview Diagram. System authentication
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    Venn Diagram Examples for Problem Solving. Computer Science. Chomsky Hierarchy

    A Venn diagram, sometimes referred to as a set diagram, is a diagramming style used to show all the possible logical relations between a finite amount of sets. In mathematical terms, a set is a collection of distinct objects gathered together into a group, which can then itself be termed as a single object. Venn diagrams represent these objects on a page as circles or ellipses, and their placement in relation to each other describes the relationships between them. The Venn diagram example below visualizes the the class of language inclusions described by the Chomsky hierarchy.Venn Diagram Problem Solving Example - Chomsky Hierarchy
    Picture: Venn Diagram Examples for Problem Solving. Computer Science. Chomsky Hierarchy
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    Data Flow Diagrams

    There are a lot of structured analysis and design technique methodologies used to describe systems and data sources. To visualize data structures, data flow diagrams can be used for various purposes in the area of software engineering. Nowadays these diagrams are also used in the area of business analysis and information system analysis. This data flow diagram depicts an account processing system of a typical account department of a small manufacturing enterprise. It shows the data transmission through the order processing to shipping verification. This data flow diagram was created according to standard of Yourdon and Coad notation. The vector graphic objects of Yourdon/Coad notation symbols was delivered by ConceptDraw Data Flow Diagrams solution. The current DFD can be employed as an example of a business process model, representing the set of business events and interactions commonly engaged in a accounts receivable process.Data Flow Diagrams
    Picture: Data Flow Diagrams
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    DFD Library - Design elements

    Data Flow Diagram is used to depict the flow of data through the system, where it enters and exits the system, as well as where it is stored. To simplify the process of drawing a data flow diagram (DFD), ConceptDraw PRO provides a DFD Library - design elements that will help you make your diagram as informative, streamlined and understandable as possible. Data flow diagrams are useful to create a general overview of the system or to document major data flows. Here are the library of symbols used in data flow diagrams (DFD). Data Flow diagrams are graphic means of business process visualization. Any business process may involve the data transfer. It can be easily shown using data flow diagrams. DFDs are used to represent the processing and transformation of data within a business process. One can find out the Vector library of DFD symbols, that is a component of ConceptDraw solution for Data Flow Diagramming and is welcome to use in as addition to the common Conceptdraw PRO diagramming facilities.DFD Library - Design elements
    Picture: DFD Library - Design elements
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