What is flowchart?

1. Simple Definition

A flowchart is a visual representation of a process, system, or algorithm. It helps people understand, analyze, and communicate complex procedures using simple shapes like rectangles, ovals, and diamonds, connected by arrows to show the sequence of steps. Flowcharts are used in various fields for planning, improving, and documenting workflows. They can be hand-drawn or created using software and come in many forms, such as process maps, business process diagrams, and data flow diagrams.

2. Technical Explanation

A flowchart is a structured graphical representation used to illustrate the logical sequence of a process, algorithm, or system. It employs standardized symbols—rectangles for processes, ovals for start/end points, diamonds for decisions, and arrows for directional flow. Flowcharts are extensively utilized in programming, engineering, and business analysis for process optimization, workflow management, and system documentation. Variants include Process Flow Diagrams (PFDs), Business Process Modeling and Notation (BPMN), and Data Flow Diagrams (DFDs).

Flowchart symbols

Here are some of the common flowchart symbols. For a more comprehensive list, see full flowchart symbols.