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Rules for Drawing Flowchart
You must follow these basic rules while drawing a flowchart:
• The flowchart should be clear, neat and easy to follow.
• Maintain the direction of the flow from left to right or top to bottom.
• Only one flow line should come out from a process symbol.
• Ensure that only one flow line should enter a decision symbol, but two flow lines should leave
the decision box.
• Ensure that the flowchart has a logical start and end.
Advantages of Flowchart
Flowcharts provide the following advantages:
• It provides a better understanding of a problem.
• It facilitates a programmer to analyse the problem in detail.
Let us understand how some simple flowcharts are made.
Example 1: Flowchart to calculate simple Example 2: Flowchart to add first 100 natural
interest. numbers.
Start Start
Read P for Principal Sum = 0
r for rate
t for time
N = 0
Calculate
SI = (P * r * t)/100 N = N + 1
Print SI Sum = Sum + N
Stop Is
N >= 100?
Flowchart to calculate simple No
interest
Yes
Print Sum
Stop
Flowchart to add first 100 natural numbers
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iPlus (Ver. 2.0)-VIII

