Page 51 - Computer Genius Class 07
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l Proper Documentation: Flowcharts serves as a good program documentation, which is needed for various
purpose.
l Easy and Efficient Testing: The Flowchart helps in debugging and testing process.
Disadvantages of Flowchart
Follo ing is the disad antage o o chart
l Difficulty in Modifications: If changes are required in the logic, then flowchart needs to be redrawn as
per the requirements.
Principles to Draw a Flowchart
There are certain principles to e ollo ed hile dra ing o charts
l Marking the start and end points clearly.
l Using standard symbols.
l Avoiding crossed lines.
l Using simple decisions.
l Working in a consistent direction.
Symbols used for the Flowchart
Sym ols that are used in o charts are as ollo s
Symbol Name Description
(Start/Stop) t is used to sho the start and stop points o the o chart. t
Oval usually contains the words 'Start' or 'Stop'.
Process It shows a process or action step.
Rectangle
Input/Output It represents information entering or leaving the system, i.e.,
Parallelogram input and output.
Decision t indicates a uestion or ranch in the process o . t is used
when there are 2 options (Yes/No).
Diamond
Flow Line t sho s the direction in hich the process o s.
Coding and Flowchart 49

