A Comprehensive Guide on Flowchart & Symbols

Flow charts are the crucial tools that help you outline steps, orders, and processes with their easy-to-follow structures. These structures consist of various shapes and symbols. 

They are the essential tools for visualizing processes, improving understanding, and facilitating effective decision-making. Flow charts facilitate users to outline steps, order, and choices in a designated task. 

This guide will walk you through the commonly used process diagram symbols, their meanings. Besides, you’ll learn how each flowchart creation can help you simplify the analysis of any production process and communicate complex workflows efficiently. 

Why Use Flowchart Symbols?

A well-designed flowchart supports process improvements and enhances problem-solving. These traits  make it invaluable for business, programming, manufacturing, and project management contexts. However, this is only possible if the flow charts are correctly made using the right symbols for the correct component.

By bringing in clarity and understanding of the various steps, flow charts symbols make the process diagrams easy to interpret. Readers can immediately understand where the processes start, end, split, or converge as they become familiar with standardized shapes. 

Key Flowchart Symbols You Should Know

1. Oval (Terminal Symbol)

Description

Also known as the terminal symbol, the oval symbol marks the start and end points in a process. 

Function:

This shape speaks for the beginning and conclusion of a process. Labeled as “Start” and “End”, these symbols clearly mention a process’s starting and ending points.

2. Rectangle (Process Symbol)

Description

As a core symbol in flowcharts, Rectangle represents actions or tasks. 

Function

This symbol represents tasks from beginning to end in a process. Each rectangle when outlines a step or operation, directs the reader to follow sequential actions.

3. Diamond (Decision Symbol)

Description

The diamond shaped symbol represents the decision points in a flowchart. 

Function

To represent choices, typically yes/no or true/false decisions, symbols, such as diamonds are used in a flowchart. 

4. Parallelogram (Input/Output Symbol)

Description

The parallelogram in a flow chart represents input and output processes, such as entering data or receiving output.

Function

Parallelogram symbol shows the data entry or exit points in a system. This informs or guides the readers about when to enter the information in the system. Likewise, this symbol also pinpoints the spot where the readers might expect a system-generated result.

5. Arrow (Flow Line)

Description

Arrows simply link steps in a process and serve as connectors. 

Function

By guiding the readers through each step in the correct sequence of work or information flow, arrows direct the reader’s flow smoothly. 

6. On-Page Connector Symbol

Description

On-page connector symbol is a small circle. It cleanly connects separate sections on the same page without crossing lines, avoiding clutter. 

Function

The on-page connector links various related steps with each other neatly, without creating a clutter and simplifies complex flowcharts easy-to-follow. 

By linking related steps without clutter, an on-page connector makes complex flow charts easier to follow. 

7. Off-Page Connector Symbol

Description

Off-page symbol is a pentagon which hints towards a continuation on another page, as the flowcharts in this case spans over multiple pages. 

Function

Off-page symbols are ideal for multi-page flowcharts. It facilitates readers to handle complex workflows consisting of many sections. 

8. Document Symbol

Description

This symbol resembles a piece of paper with a wavy edge at the bottom. 

Function

It highlights points where documentation is essential, such as creating records or quality checks. 

9. Multiple Documents Symbol

Description

This symbol appears as a stack of papers, indicating multiple documents. 

Function

Useful for processes involving multiple documents, it marks tasks requiring several forms or records. 

10. Preparation Symbol

Description

This six-sided polygon represents tasks that are used to prepare for the main workflow. 

Function

It signals steps where resources, conditions, or prerequisites must be gathered before continuing.

11. Manual Operation Symbol

Description

Shaped like a trapezoid with a wider top, it denotes manual tasks. 

Function

Indicates steps needing human intervention, helping to identify where automation could replace manual input.

12. Summoning Junction Symbol

Description

This symbol is a circle with four divided sections. 

Function

Used where multiple paths converge into one, it simplifies complex workflows by merging branches into a common point.

13. Merge Symbol

Description

A triangle that points in the direction of flow. 

Function

It combines multiple inputs or sequences, visualizing the point where different paths merge into a single process. 

14. Collate Symbol

Description

The hourglass-shaped collate symbol represents arranging or organizing items. 

Function

It’s valuable for steps involving data collection, sorting, or grouping information before analysis.

15. Sort Symbol

Description

Shaped like two joined triangles, it denoted sorting.

Function

Ideal for workflows requiring classification, such as organizing data or inventory into categories. 

16. Or Symbol

Description

A circle with a plus symbol in the center. 

Function

This symbol identifies points in a process where one of several options may proceed, clarifying branching decisions. 

17. Loop Limit Symbol

Description

A rectangle with a semi-circular top, indicates a loop’s limit. 

Function

It defines where a looping process should end, which is particularly useful in programming workflows. 

18. Delay Symbol

Description

An elongated semi-circle, this symbol marks a waiting period. 

Function

Used in workflows with built-in delays, it shows where a pause, cooling, or other time-dependent step is required. 

19. Internal Storage Symbol

Description

A rectangle with two internal lines, representing data stored within a system.

Function

Commonly seen in software flowcharts, it marks the data held within an internal memory component. 

20. Data Storage Symbol

Description

Shaped like a curved sheet of paper, it represents external data storage. 

Function

Useful in indicating interactions with external databases or file storage, such as a cloud server.

21. Database Symbol

Description

Resembling a stack of cylinders, this symbol marks the presence of a database. 

Function

Essential for workflows requiring data storage or retrieval, often used in applications like inventory or transaction management.

22. Display Symbol

Description

A combination of a semicircle and a triangle. 

Function

It shows points in the process where information is displayed, useful for user interfaces and reports. .

23. Hard Disk Symbol

Description

A sideways cylinder, representing a hard disk. 

Function

This symbol indicates where data is stored on a hard drive, marking data entry or retrieval points. 

24. Alternate Process Symbol

Description

A rectangle with rounded corners. 

Function

Used to denote a process that provides an alternative method, showing optional paths or workflows. 

Building Flowcharts with Ease

Creating flowcharts is easier than ever with modern tools that offer drag-and-drop functionality and pre-made templates. Flowchart software, like Venngage, allows you to create professional diagrams without needing extensive design skills. With an in-editor library of shapes, icons, and customizable options, you can effortlessly bring clarity and organization to complex workflows.

Conclusion

Understanding flowchart symbols is crucial for anyone involved in process mapping or process improvement. By utilizing these symbols effectively, you can create clear, streamlined, and professional diagrams that enhance communication, identify bottlenecks, and optimize processes. 

Whether you’re documenting business workflows, programming, or improving manufacturing systems, the universal language of flowcharts helps you and others comprehend and refine complex procedures. 

Mastering these symbols will make you well-equipped to map out processes with confidence and precision. Happy flowcharting!