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Rules for Drawing a Flowchart

Some guidelines to draw a flowchart are:
1. A flowchart should be clear, neat, and easy to follow.
2. A flowchart is generally drawn from top to bottom. It may be drawn from left to
right if there is limited space.

3. A flowchart must have a Start box and a Stop box.
4. Only one flow line should come out of a process or input/output box.
5. Only one flow line should go in a decision box, but two flow lines, one for each
possible answer, should come out from the decision box.

6. Two flowlines cannot intersect each other in a flowchart.
Let us consider an example to understand flowcharts.
Example 3: Write an algorithm and draw a flowchart to get ready for school.

Step 1 Step 2 Step 3
Wake up. Take a bath. Wear uniform.

Step 4 Step 5
Have breakfast. Board the school bus.

Algorithm Flowchart
Step 1: Wake up. Start

Wake up
Step 2: Take a bath.
Take a bath
Step 3: Wear uniform. Wear uniform

Step 4: Have breakfast. Have breakfast
Board the school bus
Step 5: Board the school bus.
Stop

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