Flow Chart
Flow chart a diagram is
use to graphically represent program logic, algorithm and workflow model
because A picture is worth a thousand words. Flow
chart is easy way to write down programming logic using various symbols which
help programming easily convert these symbols of logic into its equivalent code
in any language. Flow chart decreases software development process.
The first structured method for document process flow, the
"flow process chart", was introduced by Frank and Lillian Gilbreth to
members of the American Society of Mechanical Engineers (ASME) in 1921 in the
presentation "Process Charts: First Steps in Finding the One Best Way to
do Work". The Gilbreths' tools quickly found their way into industrial
engineering curricula. In the early 1930s, an industrial engineer, Allan H.
Mogensen began training business people in the use of some of the tools of
industrial engineering at his Work Simplification Conferences in Lake Placid,
New York.
Flow Chart Symbols
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| Flow Line |
An arrow coming from one symbol and ending at another symbol represents that control passes to the symbol the arrow points to. The line for the arrow can be solid or dashed. The meaning of the arrow with dashed line may differ from one flowchart to another and can be defined in the legend.
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Process
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This rectangle represents process like assignment, equation, save changes, add, and subtract expression or any other processing statement.
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Terminal
Terminal denotes starting and ending point of program |
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Diamond
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Decision making like we used if Programming.
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Input-Output
When there is need to show input and output statement
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One Page Connector
Generally represented with a circle, showing where multiple control flows converge in a single exit flow. It will have more than one arrow coming into it, but only one going out.
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Preparation
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Represented as a hexagon. May also be called initialization. Shows operations which have no effect other than preparing a value for a subsequent conditional or decision step. Alternatively, this shape is used to replace the Decision Shape in the case of conditional looping.
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Off Page Connector
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Represented as a home plate-shaped pentagon. Similar to the on-page connector except allows for placing a connector that connects to another page.
Prime Number Flow chart Example :
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Prime Number flow chart
Practice Question
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