Trend Charts
You can use trend charts to analysis data collected over a period of time. By observing trends, you can determine the appropriate time to take corrective action. For example, you can create a Glazing Process collection plan to collect process quality variables such as oven temperature and voltage from a glazing process. You can use this collection plan to record five readings at random times during each shift. Once the results are collected, you can create a trend chart to graphically display the results of temperature or voltage. See: Creating and Viewing Trend Charts.
