Page 91 - 2622_Delhi Police Public School_C-6

Symbols Used in Flowcharts

Different symbols are used to draw different types of flowcharts.

Symbol Name Description

It is used to show the start and stop points of the flowchart.
Start/Stop
Oval It usually contains the words 'Start' or 'Stop'.

Process It shows a process or action step.
Rectangle

It represents information entering or leaving the system, i.e.,
Input/Output
Parallelogram input and output.

It indicates a question or branch in the process flow. It is used
Decision when there are 2 options (Yes/No).

Diamond

Arrow Flow Line It shows the direction in which the process flows.

Rules to Draw Flowcharts

You must follow these basic rules while drawing a flowchart:
Maintain the direction of the flow from left to right or top to bottom.

Only one flow line should come out from a process box.
Only one flow line should enter a decision box, but two flow lines should leave the decision box.
Ensure that the flowchart has a logical start and end.

Look at the flowchart to calculate simple interest.

Start

Read P for Principal

r for rate
t for time

Calculate
SI = (P * r * t)/100

Print SI

Stop

Algorithmic Intelligence 89