Flowchart is a diagrammatic representation of sequence of logical steps of a program. Flowcharts use simple geometric shapes to depict processes and arrows to show relationships and process/data flow.
Here is a chart for some of the common symbols used in drawing flowcharts.
|Start/Stop||Used at the beginning and end of the algorithm to show start and end of the program.|
|Process||Indicates processes like mathematical operations.|
|Input/ Output||Used for denoting program inputs and outputs.|
|Decision||Stands for decision statements in a program, where answer is usually Yes or No.|
|Arrow||Shows relationships between different shapes.|
|On-page Connector||Connects two or more parts of a flowchart, which are on the same page.|
|Off-page Connector||Connects two parts of a flowchart which are spread over different pages.|
These are some points to keep in mind while developing a flowchart −
Flowchart can have only one start and one stop symbol
On-page connectors are referenced using numbers
Off-page connectors are referenced using alphabets
General flow of processes is top to bottom or left to right
Arrows should not cross each other
Here is the flowchart for going to the market to purchase a pen.
Here is a flowchart to calculate the average of two numbers.