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16 Cards in this Set
- Front
- Back
Flow Chart |
Schematic representation of a system or process
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Start/Stop
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Process
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Decision (quality control), with a yes/no answer
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Arrow- indicate the flow of control |
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Open-loop control system
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no feedback information on quality, therefore the process will continue with no interference |
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Disadvantage of open-loop control system
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Cannot detect or correct any errors
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Application of open-loop control system
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Basic processes e.g. a light switch
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Closed-loop control systems
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Utilise feedbback, to make decisions about changes to a process |
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Advantages of closed-loop control systems
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Improved performance tracking throughout production process and early detection of faults that can be rectified |
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Applications of closed-loop control system
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More complex systems e.g. a light switch with a dimmer |
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Flow chart sequence |
Start Input Perform Algorithm Output End |
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Algorithm is.. |
The logic & calculations & how & when things are supposed to happen to produce the desired output using the input |
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Inputs can sometimes be included with outputs? |
True! Outputs need a logical association with something the user can understand. Inputs placed with outputs have () placed around them to distinguish them |
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3 types of output exist for flow charts |
Display Prompt |
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What are the 3 kinds of flow charts? |
Sequential Selection / Decision Loop. Reptition, Iteration |