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Tools and Techniques for Business Improvement |
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Point graphsThe Quality Toolbook > Tools for Applications > Tool types > Point graphs
Numeric information lends itself well to visual representation in graphs and chart. These convert what can be a mass of unintelligible numbers into a form which clearly convey important attributes of the problem. DescriptionPoint graphs generally plot pairs of measurements in a two-dimensional 'traditional' x-y format, as in the figure below. Lines may be added to show the sequence of measurement, overall trends or significant boundaries. Decision areas are typically highlighted by the way points form groups, change across a sequence of measurements, or cross significant boundaries.
Fig. 1. Point graph
Examples
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