100-Metodos-de-Qualidade-Total

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ANALYTICAL METHODS 115 Method 47 Stratification Purpose To assist in the definition of a problem by identIfying where it does and does not occur. When to use In teams, when trying to identify a problem and define it precisely as the first stage of problem-solving. How to use Stratification is a method of splitting data according to whether it does or does not meet a set of criteria. The value of the technique is to expose patterns in the data. It is used before data collection begins to design the way in which data will be collected, and after data collection as a way of focusing the analysis. The process is very simple. 1 Brainstorm a list of criteria or characteristics that could cause systematic differences in the data. These are not necessarily things that do cause differences but things that could cause them. 2 Design the data collection forms to include these items. 3 Collect the data and examine them for any patterns or trends. Benefits By focusing on data before collection, stratification ensures that all necessary data are collected first time and avoids wasted effort. Example A team was examining the problem of absenteeism. The list of characteristics generated at the start was: Name Age Sex Day Consecutive days
116 100 METHODS FOR TOTAL QUALITY MANAGEMENT Month Boss name Work area Overtime worked Total days absent The data collected were analysed according to these categories and patterns looked for. Analysts might, for example, reveal that the day after pay day or certain days of the month were particularly prone to absenteeism. Reference B. Bergman and B. Klefsjo (1994) Quality: from Customer Needs to Customer Satisfaction. New York: McGraw-Hili.
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100 METHODS FOR TOTAL QUALITY MANAG
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PREFACE An essential part of the de
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THE ROLE OF TQM METHODS Total quali
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LIST OF METHODS (BY CATEGORY) Manag
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MANAGEMENT METHODS Method 1 Accepta
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REFERENCES Akao, Y. (1991) Hoshin K
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INDEX acceptable quality level (AQL
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100-Metodos-de-Qualidade-Total

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