Design of experiments consists of a series of techniques used to explore various operating conditions of a process with the goal of finding lower raw material, process, and product costs, improved or new product performance, less product variability, or higher production capacity to meet increasing demand. In large companies with specialized departments, experimental design is the province of engineers, food scientists, or research and development, but quality control personnel may become involved with performing, and sometimes evaluating, industrial experimentation. Consequently, an understanding of the techniques of this discipline is valuable. In smaller companies, where the task of industrial experimentation often falls to the quality control manager, a knowledge of statistical design of experiments is imperative.
KeywordsResponse Surface Control Chart Central Composite Design Full Factorial Design Extraneous Variable
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