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Harvey Balls are round ideograms used for visual communication of qualitative information. They are commonly used in comparison tables to indicate the degree to which a particular item meets a particular criterion. File:Harvey Balls Small.jpg For example, in a comparison of products, information such as price or weight can be conveyed numerically, and binary information such as the existence or lack of a feature can be conveyed with a check mark; however, information such as "quality" or "safety" or "taste" is often difficult to summarize in a manner allowing easy comparison – thus, Harvey Balls are used. In addition to their use in qualitative comparison, Harvey Balls are also commonly used in Project Management for project tracking; in Lean Manufacturing for VSM and Continuous Improvement tracking; and in BPM software for visualisation.〔(kellen.net ) - Business Performance Measurement - At the Crossroads of Strategy, Decision-Making, Learning and Information Visualization〕 Harvey Poppel is generally credited with inventing Harvey Balls in the 1970s while working at Booz Allen Hamilton as a consultant.〔(Digital Roam ) - The Back of the Napkin Blog〕〔(Palm Beach Daily News )〕 Harvey Balls have nothing to do with Harvey Ball, the inventor of the smiley face. == Implementations and support == 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Harvey Balls」の詳細全文を読む スポンサード リンク
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