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Title: The use of design of experiments (DOE) : time for company management to decide
Author: Choi, Paul Koon Ping
ISNI:       0000 0004 2720 7482
Awarding Body: University of the West of Scotland
Current Institution: University of the West of Scotland
Date of Award: 2008
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Many corporations over the world showed evidence of getting positive benefits from using design and analysis of experiments (DOE), however, some others did not. Companies did not use DOE or failed in using it (for some reasons) might lose their opportunities of getting those benefits which their counterparts received. Despite the advantages of. DOE, the technique is not commonly used by management. The purpose of this research is to investigate why the technique is not applied more often and hence suggestions are made to help rectify the situation. The research covered four main stages: literature review, samples of representative literature, questionnaire survey via the Internet and a case study using action research methodology being carried out in a printed circuit board company in Hong Kong. Triangulation was used in this research in order to uncover knowledge about the topic of study and tradeoff bias caused. A random sampling method and a judgmental sampling method were used in the samples of representative literature. Subsequently, two questionnaire surveys via the Internet were respectively conducted. The snowball sampling method was used to contact targeted companies. Data and information received from the surveyed companies on the use, or not, of DOE were collected and analyzed. The results and findings of the two questionnaire surveys indicated of what, how and why companies use, or not use, of DOE in their operations. A case study using action research methodology was also carried out in a local company. The action research was three-fold: (I) the researcher (i.e. the author) conducted DOE training to a team of staff, (2) trained staff undertook a current industrial problem and resolved it by using DOE, and (3) the company changed from the state of 'non-use of DOE' to the one of 'use of DOE' for better performance practices. Feedbacks from top management and the staff enriched the researcher to answer the posed research questions and achieved the objectives of the whole study.
Supervisor: Not available Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID:  DOI: Not available