Flowcharts A flowchart is a diagrammatic representation that illustrates the sequence of operations to be performed to get the solution of a problem. Notation that is often used during the design stage of the software life cycle for quick and easy understanding of a programs flow. Basic Flowchart symbols Decision Start End Process Input/Output Start and Ending Blocks Start End These blocks are used to start and end a process or program. These blocks should contain simple labels to indicate the process or program. Input/Output Block Input/Output This block can represent either input or output statements. This block should be labeled with a brief description of the input or output. Process Block Process The process block represents some operation carried out on an element of data. This could be a calculation. This block should be labeled with a brief description of the process being carried out. Decision Block Decision F T The decision block should be a True/False choice. The label on the block should contain the question to the decision that should be made. How to use these Blocks We can imagine using these blocks to build up a representation of our program. Let’s look at our original QualifyForLifting program and represent it using flowchart notation.
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