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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 DIAGRAM software enhanced with Data Flow Diagrams solution ideally suits for creation DFD models and professional drawing Data Flow Diagrams.

Data Flow Diagram (DFD)

A Data Flow Diagram (DFD) illustrates the flow of data through an information system, visualizes how the information is handled in terms of inputs and outputs, how the data enter to system and leave it. It is effective to use a Data Flow Diagram for creation the system's overview, to show the system's scope and boundaries. There are two different types of notations for DFDs: Yourdon-Coad and Gane-Sarson, which differ in visual representations for processes, data flow, data stores, external entities, etc. Thus, for example the processes are depicted as circles in Yourdon-Coad notation and as rounded squares in Gane-Sarson notation. Gane-Sarson notation is usually used for visualization information systems and Yourdon-Coad - for system analysis and design. The Data Flow Diagrams solution included to Software Development area of ConceptDraw Solution Park offers a lot of DFD templates, samples and examples, libraries of vector stencils for construction without efforts the DFDs according to both Gane-Sarson and Yourdon-Coad notations.

event-driven process chain diagram, EPC diagram, process chain flowchart Event-driven Process Chain Diagrams

event-driven process chain diagram, EPC diagram, process chain flowchart
Event-Driven Process Chain Diagrams solution extends ConceptDraw DIAGRAM functionality with event driven process chain templates, samples of EPC engineering and modeling the business processes, and a vector shape library for drawing the EPC diagrams and EPC flowcharts of any complexity. It is one of EPC IT solutions that assist the marketing experts, business specialists, engineers, educators and researchers in resources planning and improving the business processes using the EPC flowchart or EPC diagram. Use the EPC solutions tools to construct the chain of events and functions, to illustrate the structure of a business process control flow, to describe people and tasks for execution the business processes, to identify the inefficient businesses processes and measures required to make them efficient.

draw pie chart, draw donut chart Pie Charts

draw pie chart, draw donut chart
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 DIAGRAM 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.

Scatter Graph Charting Software

ConceptDraw provides some interactive xy chart and scatter graph symbols that offers advanced features yet is simple to use.

Bar Chart Software

The best bar chart software ever is ConceptDraw. ConceptDraw bar chart software provides an interactive bar charting tool and complete set of predesigned bar chart objects.

Best Diagramming Software for macOS

ConceptDraw DIAGRAM creates drawings, flowcharts, block diagrams, bar charts, histograms, pie charts, divided bar diagrams, line graphs, area charts, scatter plots, circular arrows diagrams, Venn diagrams, bubble diagrams with great visual appeal on Mac OS X.
How to Draw a Bubble Chart
How to Draw a Bubble Chart