Lean - 基本的分析工具简介(18)

Run ChartMeasureWhat The simplest possible display of trends within written observation points over a specified periods of time.How Identify the measurement to be made. Decide on the time interval of the measurements. Select the scale to be used. Plot points on the order in which they occur and connect with straigh

t lines. Analyze the data looking for non random events. It is expected that we should find an equal number of points falling above and below the average.

TimeWhy To visually represent data. To monitor a process to see whether the long range average is changing. To focus attention on truly vital changes in the process. To identify meaningful trends or shifts in the average.

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