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Data Flow Diagram Model

Data Flow Diagram Model

Data Flow Diagram (DFD) is a technique of graphical structural analysis, describing the sources external to the system, recipients of data, also logical functions, data flows and data stores that are accessed. The DFD's goal is to show how each process converts its inputs into the outputs and to identify relationships between these processes, at this make the system's description clear and understandable at every level of detail. Historically happened that for describing Data Flow Diagrams are used two notations - Yourdon and Gane-Sarson that differ each from other by graphical representation of symbols. The DFD model, like most other structural models is a hierarchical model. Each process can be subjected to decomposition on the structural components, the relationships between which in the same notation can be shown on a separate diagram. Typically, several DFD models are built when modeling the system. ConceptDraw PRO software enhanced with Data Flow Diagrams solution ideally suits for creation DFD models and professional drawing Data Flow Diagrams. Read more
"A data flow diagram (DFD) is a graphical representation of the "flow" of data through an information system. It differs from the flowchart as it shows the data flow instead of the control flow of the program. A data flow diagram can also be used for the visualization of data processing (structured design). Data flow diagrams were invented by Larry Constantine, the original developer of structured design, based on Martin and Estrin's "data flow graph" model of computation.
It is common practice to draw a context-level Data flow diagram first which shows the interaction between the system and outside entities. The DFD is designed to show how a system is divided into smaller portions and to highlight the flow of data between those parts. This context-level Data flow diagram is then "exploded" to show more detail of the system being modeled" [Data model. Wikipedia]
The DFD (Yourdon and Coad notation) example "Model of small traditional production enterprise" was created using the ConceptDraw PRO diagramming and vector drawing software extended with the Data Flow Diagrams solution from the Software Development area of ConceptDraw Solution Park. Read more
Data Flow Diagram Model
Data Flow Diagram Model, process, external interactor, data store,

ConceptDraw Solution Park ConceptDraw Solution Park

ConceptDraw Solution Park collects graphic extensions, examples and learning materials Read more
ConceptDraw Solution Park

Basic Flowchart Symbols and Meaning

Flowcharts are the best for visually representation the business processes and the flow of a custom-order process through various departments within an organization. ConceptDraw PRO diagramming and vector drawing software extended with Flowcharts solution offers the full set of predesigned basic flowchart symbols which are gathered at two libraries: Flowchart and Flowcharts Rapid Draw. Among them are: process, terminator, decision, data, document, display, manual loop, and many other specific symbols. The meaning for each symbol offered by ConceptDraw gives the presentation about their proposed use in professional Flowcharts for business and technical processes, software algorithms, well-developed structures of web sites, Workflow diagrams, Process flow diagram and correlation in developing on-line instructional projects or business process system. Use of ready flow chart symbols in diagrams is incredibly useful - you need simply drag desired from the libraries to your document and arrange them in required order. There are a few serious alternatives to Visio for Mac, one of them is ConceptDraw PRO. It is one of the main contender with the most similar features and capabilities. Read more

Process Flowchart

The main reason of using Process Flowchart or PFD is to show relations between major parts of the system. Process Flowcharts are used in process engineering and chemical industry where there is a requirement of depicting relationships between major components only and not include minor parts. Process Flowcharts for single unit or multiple units differ in their structure and implementation. ConceptDraw PRO is Professional business process mapping software for making Process flowcharts, Process flow diagram, Workflow diagram, flowcharts and technical illustrations for business documents and also comprehensive visio for mac application. Easier define and document basic work and data flows, financial, production and quality management processes to increase efficiency of your business with ConcepDraw PRO. Business process mapping software with Flowchart Maker ConceptDraw PRO includes extensive drawing tools, rich examples and templates, process flowchart symbols and shape libraries, smart connectors that allow you create the flowcharts of complex processes, process flow diagrams, procedures and information exchange. Process Flowchart Solution is project management workflow tools which is part ConceptDraw Project marketing project management software. Drawing charts, diagrams, and network layouts has long been the monopoly of Microsoft Visio, making Mac users to struggle when needing such visio alternative like visio for mac, it requires only to view features, make a minor edit to, or print a diagram or chart. Thankfully to MS Visio alternative like ConceptDraw PRO software, this is cross-platform charting and business process management tool, now visio alternative for making sort of visio diagram is not a problem anymore however many people still name it business process visio tools. Read more

data flow diagram, DFD templates Data Flow Diagrams (DFD)

Data Flow Diagrams solution extends ConceptDraw PRO software with templates, samples and libraries of vector stencils for drawing the data flow diagrams (DFD). Read more
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Cloud computing, Architecture Diagrams, Cloud Computing Architecture, How Cloud Computing Works, amazon cloud computing architecture, introduction to cloud computing architecture Cloud Computing Diagrams

The Cloud Computing Diagrams solution extends the functionality of the ConceptDraw PRO software with comprehensive collection of libraries of cloud computing vector stencils to help you get started design of Cloud Computing Diagrams and Architecture D Read more
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draw line graph, draw line chart Line Graphs

How to draw a Line Graph with ease? The Line Graphs solution extends the capabilities of ConceptDraw PRO v10 with professionally designed templates, samples, and a library of vector stencils for drawing perfect Line Graphs. Read more
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draw bar chart, draw bar graph, draw column chart Bar Graphs

The Bar Graphs solution enhances ConceptDraw PRO v10 functionality with templates, numerous professional-looking samples, and a library of vector stencils for drawing different types of Bar Graphs, such as Simple Bar Graph, Double Bar Graph, Divided Bar Graph, Horizontal Bar Graph, Vertical Bar Graph, and Column Bar Chart. Read more
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event-driven process chain diagram, EPC diagram, process chain flowchart Event-driven Process Chain Diagrams

Event-driven Process Chain (EPC) Diagram is a type of flowchart widely used for modeling in business engineering and reengineering, business process improvement, and analysis. EPC method was developed within the Architecture of Integrated Information Systems (ARIS) framework. Read more
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draw picture graph, draw picture chart, image chart, pictorial chart Picture Graphs

Typically, a Picture Graph has very broad usage. They many times used successfully in marketing, management, and manufacturing. The Picture Graphs Solution extends the capabilities of ConceptDraw PRO v10 with templates, samples, and a library of professionally developed vector stencils for designing Picture Graphs. Read more
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telecommunication networking, networking and telecommunications, telecommunications network, computer systems networking and telecommunications Telecommunication Network Diagrams

Telecommunication Network Diagrams solution extends ConceptDraw PRO software with samples, templates and libraries of vector stencils for drawing the diagrams of telecommunication networks. Read more
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draw pie chart, draw donut chart Pie Charts

Pie Charts are extensively used in statistics and business for explaining data and work results, in mass media for comparison (i.e. to visualize the percentage for the parts of one total), and in many other fields. The Pie Charts solution for ConceptDraw PRO v10 offers powerful drawing tools, varied templates, samples, and a library of vector stencils for simple construction and design of Pie Charts, Donut Chart, and Pie Graph Worksheets. Read more
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value stream map, VSM Value Stream Mapping

Value stream mapping solution extends ConceptDraw PRO software with templates, samples and vector stencils for drawing the Value Stream Maps (VSM) in lean manufacturing practice. Read more
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