Flow diagram

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Flow diagram for the production of Ammonia.

A flow diagram is a diagram representing some kind of flow. The most known is the flowchart, often also called "flow diagram" but there are more different kind of flow diagrams.


Earlier examples

18th century and earlier works
19th century
20th century, first half
20th century, second half
21th century

General types of flow diagrams[edit]

Flow charts[edit]

Main gallery: Flow chart.

The flowchart represents an algorithm, a process, or the step-by-step solution of a problem. See Category:Flow diagrams

Flow maps[edit]

Flow maps show the movement of objects from one location to another. See Category:Flow maps

Sankey diagram[edit]

Sankey diagram are a specific type of flow diagram, in which the width of the arrows is shown proportionally to the flow quantity. See Category:Sankey diagrams

Specific applications and specific types of diagrams[edit]

Flow diagrams in business administration and management[edit]

Accountancy diagrams
Main Category:Accounting diagrams
Business flow models
Supply chain models

Flow diagrams in economics[edit]

Economic flow diagrams
Economic circular flow diagram
Main Category:Economic circular flow diagrams

Economic circular flow diagram, since 1940s

See also

Flow diagrams in engineering[edit]

Flow diagram of production process
Process flow diagrams

A process flow diagram (PFD) is a diagram commonly used in chemical and process engineering to indicate the general flow of plant processes and equipment. See Category:Process flow diagrams

Sankey diagram

Flow diagrams in geography[edit]

Maps on different levels
global, continental, national and local

Flow diagrams in systems engineering or software engineering[edit]

Activity diagram

An activity diagram is a diagram that shows activities and actions to describe workflows. It is in fact a specific type of flowchart, which shows a sequence of activities. See Category:Activity diagrams

Business Process Modeling Notation

Business Process Modeling Notation (BPMN) is a standardized graphical notation for drawing business processes in a workflow. See Category:Business Process Modeling Notation

Data flow diagram

A data flow diagram is a graphical representation of the flow of data through an information system. See Category:Data flow diagrams

Function Block Diagram

A Function Block Diagram (FBD) is a diagram, that describes a function between input variables and output variables. A function is described as a set of elementary blocks. Input and output variables are connected to blocks by connection lines. See Category:Function block diagrams

Functional Flow Block Diagrams

Functional Flow Block Diagrams (FFBD) are multi-tier, time-sequenced, step-by-step flow diagram of the system’s functional flow, see Category:Functional flow block diagrams


IDEF0 is an Integration Definition for function Modeling, and is a common modeling technique for the analysis, development, re-engineering, and integration of information systems; business processes information modelling. See Category:IDEF0

Nassi-Shneiderman diagram

Nassi-Shneiderman diagram, see Category:Nassi-Shneiderman diagrams

Process-data diagram

A process-data diagram is a diagram that describes processes and data that act as output of these processes. See Category:Process-data diagram

UML Activity diagrams

An activity diagram in UML represents the business and operational step-by-step workflows of components in a system. An activity diagram shows the overall flow of control. See Category:UML Activity diagrams

Waterfall models
See also Category:Waterfall models

See also[edit]