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The following symbols are used to create flowcharts:
Symbol Name Symbol Purpose
Oval It is used to show the start and stop points of the flowchart. It
usually contains the words ‘Start’ or ‘Stop’.
Parallelogram It represents information entering or leaving the system, i.e.,
input and output.
Rectangle
It shows a process, action, or operation to be performed.
Diamond It indicates a question or branch in the process flow. It is used
when there are 2 options (Yes/No).
Arrow It indicates the direction of flow between steps in the process.
Rules for Making a Flowchart
The following rules should be followed while creating a flowchart:
A flowchart starts with a "Start" symbol and ends with a "Stop" symbol.
All symbols should be connected by arrow lines.
Use standard symbols to represent different steps.
The flow should move top to bottom or left to right in a logical sequence.
Clearly label symbols to show their purpose.
Keep it simple by breaking complex tasks into smaller steps.
Use consistent symbols for similar actions.
Ensure one entry point and one exit point for clarity.
Advantages of Flowcharts
The advantages of flowcharts are as follows:
It has graphic symbols that are a better way of communication.
It is very effective in solving and analysing a problem.
It is easy to convert a flowchart into a program in any programming language.
It makes program or system maintenance easier.
It is used in preparing documentation of the software.
Disadvantages of Flowcharts
The disadvantages of flowcharts are as follows:
It is a time-consuming process.
It is difficult to make flowcharts for complex and long programs.
Modification of the program through flowchart is sometimes time-consuming.
USING GOOGLE DRAWINGS FOR CREATING FLOWCHARTS
There are a lot of tools used to draw flowcharts. We will be using Google Drawings. It is a free
tool. You just need to login to your Gmail account to use this tool.
Algorithm and Flowchart 43

