A project report submitted to the Faculty of Engineering, University of the Witwatersrand, Johannesburg, in partial fulfillment of the requirements for the degree of Master of Science in Engineering. Johannesburg, 1996. / This research project is an investigation into the effectiveness of an inspect and rework system called dynamic section control which has the purpose of improving the assembly quality of the BMW-3 series manufacturing in the Rosslyn Plant just outside Pretoria in South Africa, The system was introduced into the assembly plant in February 1995 to improve the assembly quality of the vehicles as quickly as possible. The main motivation behind the need for this system was to bring the quality onto the same level as the German plants in order to become recognised in the international network of BMW's manufacturing plants along with the new manufacturing plant in the USA The origins of the dynamic section control system come from the Munich 3-series plant as well as being based on the principles of poka yoke, a quality philosophy devised by the quality expert from Toyota in Japan, Shigeo Shingo, Defects found on the assembly plant's line, identified by the quality auditor and information from the marketing department regarding warranty claims are entered onto a checklist which is used by reworkers in the plant to inspect and make good the defects that have been found. The checklist is updated on a weekly basis, hence its name: dynamic section control. Seven rework stations, in which the dynamic section control reworkers work, have been strategically positioned in the assembly plant which trims the painted bodies it receives from the paint shop, The effectiveness of the system has been measured by analysing the information from the daily audits as well as investigating the trend of vehicles If rving the assembly plant still requiring rework and repairs off-line. The analyses were divided into three distinct periods. The first being approximately 4 months before the introduction of :he dynamic section control system, and the second and third periods after the introduction of the system. The results show that the dynamic section control system have a positive influence in improving the assembly quality of the vehicles, especially reducing the number of recurring defects. The number of defects that have only occurred once in each of the periods has remained reasonably constant indicating that the system has no impact in reducing the random occurrence of "one-off" defects. Another significant finding was. the increase in the number of vehicles requiring Department of Mechanical Engineering, University of the Witwatersrand repair off-line, attributable to the assembly plant, after the vehicle has left the assembly line. This increase is probably the result of an increased quality awareness within the assembly plant, resulting in reworkers identifying an increasing number of defects for repair off-line. Other factors such as clearer identification of production goals, training and development of a proportion of the assembly plant's workers in the German plants lor three weeks, reorganizing of support. staff by installing "the right people in the right place" and reducing the number of model derivatives in the plant have also contributed to the enormous quality improvement achieved. Further development of the. dynamic section control system is recommended by installing a rework station within each team area, and including the actions of dynamic section control in the work content of that team. Currently, the system uses external workers which are not part of individual teams as the current sections overlap team areas. Finally, it is recommended that the work of the dynandc section control reworker be incorporated as a noma! function within the team and be rotated amongst the team members. / AC2017

Made available in DSpace on 2015-12-03T18:32:59Z (GMT). No. of bitstreams: 1 Diamantino_Augusto_Sardinha_Neto.pdf: 811071 bytes, checksum: 193d71b5dd350f8889762578d9568038 (MD5) Previous issue date: 2002-10-23 / This study aims to investigate how has been the ISO 9002 certification process in the Repair Department of the Companhia do Metropolitano de S??o Paulo - Metr??, in the Wheeling Material process. A survey has been performed among the Department employees in order to study the group's impression about the certification and its results. The data analysis allowed to verify the employees perceptions about the process and identify the changes with the certification mainly with reference to documentation, organization and maintenance procedures. With this work we intend to contribute for further studies about certification in accordance with ISO 9000 requirements and its effects on the organizations, specially the ones with mixed economy, like this that was the subject of this research. / Este estudo de caso tem por objetivo investigar como foi o processo de certifica????o ISO 9002 no Departamento de Oficinas da Companhia do Metropolitano de S??o Paulo - Metr?? no processo do Material Rodante. Realizou-se uma pesquisa entre os funcion??rios do Departamento para estudar as impress??es do grupo sobre a certifica????o e seus resultados. A an??lise dos dados permitiu verificar a percep????o dos funcion??rios sobre o processo e identificar mudan??as ocorridas, principalmente no que tange ?? documenta????o, organiza????o e procedimentos de manuten????o. Com este trabalho pretende-se contribuir para estudos sobre a certifica????o nas normas ISO 9000 e seus efeitos nas empresas, especialmente nas de economia mista, como a que foi objeto desta pesquisa.

by Wong Kam-kwai. / Thesis (M.B.A.)--Chinese University of Hong Kong, 1991. / Bibliography: leaves 88-91. / ABSTRACT --- p.ii / TABLE OF CONTENTS --- p.iii / LIST OF ILLUSTRATIONS --- p.v / LIST OF TABLES --- p.v / Chapter / Chapter I. --- INTRODUCTION --- p.1 / Chapter II. --- QUALITY CIRCLES - PAST AND PRESENT --- p.4 / Birth of QC Circles --- p.4 / What is QC Circle ？ --- p.4 / Development of QC Circle Activities Outside Japan --- p.5 / QC Circle Terminology --- p.6 / Why Quality Circles ？ --- p.6 / Quality Circle and Total Quality Control --- p.7 / Quality Circles in Hong Kong --- p.8 / Who is Behind the Promotion ？ --- p.10 / Hong Kong Productivity Council --- p.11 / Hong Kong Quality Circles Association --- p.11 / Who is in the Arena of Quality Circles ？ --- p.12 / Chapter III. --- RESEARCH METHODS --- p.14 / The Research Problem --- p.14 / Limitation of the Research --- p.14 / Research Design and Information Collection --- p.15 / Difficulties in Information Collection --- p.17 / Method of Analysis --- p.18 / Chapter IV. --- QUALITY CIRCLES IN MANUFACTURING INDUSTRIES --- p.20 / Evolution of Quality Control --- p.20 / Hong Kong Experience --- p.20 / Bystanders --- p.22 / Drop-outs --- p.22 / Lesson from Runners in the Arena --- p.24 / Chapter V. --- QUALITY CIRCLES IN SERVICE INDUSTRIES --- p.34 / Quality of Service --- p.34 / Hong Kong Experience --- p.35 / Bystanders --- p.36 / Drop-outs --- p.36 / Lesson from Runners in the Arena --- p.37 / Chapter VI. --- CONCLUSION --- p.43 / What Make Quality Circles Work ? --- p.44 / Labor Relation --- p.44 / Participation --- p.44 / A Well Planned and Structured Scheme --- p.45 / Promotion of Quality Circles --- p.46 / Key Notes For Implementing Quality Circle Programs in Hong Kong --- p.47 / The Prospect of Quality Circle in the Future --- p.49 / Chapter APPENDIX 1 --- BENEFITS GAINED BY IMPLEMENTING QUALITY CIRCLES --- p.52 / Chapter APPENDIX 2 --- CASE STUDIES IN MANUFACTURING INDUSTRIES --- p.53 / Chapter APPENDIX 3 --- CASE STUDIES IN SERVICE INDUSTRIES --- p.69 / BIBLIOGRAPHY --- p.88

by Cheung Kwok-wah. / Thesis (M.B.A.)--Chinese University of Hong Kong, 1993. / Includes bibliographical references (leaves [1]-[2] (2nd group)). / ABSTRACT --- p.ii / TABLE OF CONTENT / Chapter I. --- INTRODUCTION --- p.1 / Chapter II. --- DEFINITION OF TOTAL QUALITY MANAGEMENT --- p.2 / Chapter III. --- QUALITY AWARENESS IN HONG KONG --- p.3 / Chapter IV. --- TOTAL QUALITY MANAGEMENT PRACTICE IN HONG KONG --- p.4 / Chapter V. --- ISO9000. / Chapter A. --- What is ISO 9000 ？ --- p.6 / Chapter B. --- Benefit of ISO 9000 --- p.6 / Chapter C. --- ISO 9000 Certification in Hong Kong --- p.7 / Chapter VI. --- PURPOSE OF THE STUDY --- p.8 / Chapter VII. --- LITERATURE REVIEW --- p.9 / Chapter A. --- Approach for implementation of Total Quality Management --- p.9 / Chapter B. --- Factors associated with the success of implementation of TQM --- p.9 / Chapter 1. --- Management commitment and Total Quality Management --- p.10 / Chapter 2. --- Involvement of people and Total Quality Management --- p.10 / Chapter 3. --- Quality Training and Total Quality Management --- p.11 / Chapter 4. --- Measurement of quality cost and Total Quality Management --- p.12 / Chapter 5. --- "Rewards, Recognition and Total Quality Management" --- p.14 / Chapter C. --- Reasons for implementing quality improvement prcgramme --- p.14 / Chapter D. --- Barriers to the implementation of Total Quality Management programme --- p.15 / Chapter VIII. --- METHODOLOGY / Chapter A. --- Target population and sampling --- p.16 / Chapter B. --- Target survey group --- p.16 / Chapter C. --- The questionnaire design --- p.17 / Chapter D. --- Questions grouping --- p.17 / Chapter XI. --- SURVEY RESPONSES / Chapter A. --- Profile of the respondents --- p.19 / Chapter B. --- Reasons for implementation of Total Quality Management programme --- p.22 / Chapter C. --- Total Quality Management approach --- p.23 / Chapter D. --- Quality department and Total Quality Management --- p.24 / Chapter E. --- Quality training and Total Quality Management --- p.25 / Chapter F. --- "Rewards, Recognition and Total Quality Management" --- p.26 / Chapter G. --- Quality costs and benefits measurement and Total Quality Management --- p.27 / Chapter H. --- Achievements observed after implementation of Total Quality Management programmes --- p.30 / Chapter I. --- Difficulties encountered during implementation of TQM programme --- p.31 / Chapter J. --- Outside resources for implementation of Total Quality Management programmes --- p.33 / Chapter K. --- Opinions from manufacturers who have implemented Total Quality Management programmes --- p.34 / Chapter L. --- Progress of ISO 9000 --- p.36 / Chapter M. --- Comparison on Total Quality Management Practices between HK based and China based Manufacturers --- p.37 / Chapter N. --- Summary --- p.43 / Chapter X. --- RECOMMENDATIONS --- p.46 / Chapter XI. --- ACKNOWLEDGEMENT --- p.48 / REFERENCE / Chapter APPENDIX 1. --- Questionnaire / Chapter 2. --- Respondents profile by product nature / Chapter 3. --- Respondents profile by company size / Chapter 4. --- Respondents profile by length of time of TOM programme / Chapter 5. --- Reasons for implementation of TQM programme / Chapter 6. --- Total Quality Management approach / Chapter 7. --- Quality training provided to / Chapter 8. --- ISO 9000 status

by Wong, Tony Ton. / Thesis (M.B.A.)--Chinese University of Hong Kong, 1996. / Includes bibliographical references (leaves 78-80). / Chapter CHAPTER I --- INTRODUCTION --- p.1 / Chapter CHAPTER II --- PROJECT BACKGROUND --- p.3 / BRIEF HISTORY OF QUALITY MANAGEMENT IN INDUSTRIALIZED NATIONS --- p.5 / PHILOSOPHIES OF QUALITY MANAGEMENT --- p.6 / BRIEF HISTORY OF MANUFACTURING IN HONG KONG --- p.8 / SOCIO-ECONOMIC SIGNIFICANCE OF THE MANUFACTURING SECTOR --- p.9 / TRENDS AND OPPORTUNITIES --- p.10 / HISTORICAL ACCOUNT OF QUALITY MANAGEMENT IN THE MANUFACTURING SECTOR --- p.13 / Chapter CHAPTER III --- METHODOLOGY --- p.18 / SELECTION OF SURVEY TARGETS --- p.18 / QUESTIONNAIRE DESIGN --- p.20 / COMPANY PROFILES --- p.20 / IMPLEMENTATION STAGES AND COMMON TECHNIQUES --- p.21 / ACQUISITION OF QUALITATIVE DATA --- p.22 / CONDUCTING THE SURVEY --- p.22 / Chapter CHAPTER IV --- SURVEY RESULT ANALYSIS --- p.26 / COMPANY PROFILES --- p.27 / INDUSTRY OF THE SURVEY PARTICIPANTS --- p.27 / LOCATIONS OF MANUFACTURING FACILITIES --- p.30 / PRODUCTION PROCESSES --- p.31 / EMPLOYEE SIZE --- p.32 / EDUCATION LEVELS OF EMPLOYEES --- p.34 / IMPORTANCE OF WORKER SKILL LEVELS --- p.34 / IMPORTANCE OF STANDARD PROCEDURE --- p.35 / CRITICAL EXTERNAL FACTORS --- p.36 / INTRA-COMPANY COMMUNICATION --- p.37 / QUALITY MANAGEMENT SYSTEM IMPLEMENTATION AND TECHNIQUES --- p.39 / DRIVING FORCE FOR QUALITY IMPROVEMENT --- p.39 / MANAGEMENT STYLE --- p.40 / MEDIUM TERM CORPORATE OBJECTIVES --- p.42 / HISTORY OF FORMAL QUALITY MANAGEMENT PROGRAM --- p.43 / QUALITY IMPROVEMENT METHODOLOGIES --- p.44 / APPLICATION OF SQC TECHNIQUES --- p.47 / QUALITY IMPROVEMENT TEAMS --- p.48 / TRAINING FOR QUALITY IMPROVEMENT --- p.51 / MOTIVATION TECHNIQUES --- p.53 / ACCREDITATION ON ISO´ؤ9000 SERIES STANDARD --- p.54 / MAJOR OBSTACLES TO QUALITY IMPROVEMENT --- p.56 / STAGES OF QUALITY MANAGEMENT SYSTEM IMPLEMENTATION --- p.58 / MANAGEMENT STYLE AND QUALITY OBJECTIVES --- p.60 / IMPACT OF ISO-9000 ACCREDITATION ON QUALITY PRIORITIES --- p.61 / Chapter CHAPTER V --- CONCLUSIONS AND RECOMMENDATIONS --- p.64 / CONCLUSIONS --- p.64 / RECOMMENDATIONS AND FUTURE WORK --- p.67 / FURTURE WORK --- p.67 / APPENDICES AND OTHER ATTACHMENTS --- p.69 / APPENDIX 1 - COVER LETTER DESIGN --- p.70 / APPENDIX 2 - SAMPLE SURVEY QUESTIONNAIRE --- p.71 / APPENDIX 3 - MEISTER'S TEN LESSONS ON TRAINING --- p.75 / APPENDIX 4 - HYPOTHESIS TEST ON THE DIFFERENCE BETWEEN TWO POPULATION PROPORTIONS --- p.76 / BIBLIOGRAPHY AND REFERENCES --- p.78

Quality control (QC) plan is an important component of manufacturing planning for mass customization. QC planning is to determine the operational tolerances and the way to control process variation for assuring the production quality against design tolerances. It includes four phases, i.e., tolerance stack-up analysis, tolerance assignment, in-process inspection design, and the procedure of error source diagnosis & process control. Previous work has been done for tolerance stack-up modeling based on the datum-machining surface relationship graph (DMG), machining error analysis, and worst-case/statistical method. In this research, the tolerance stack-up analysis is expanded with a Monte-Carlo simulation for solving the tolerance stack-up problem within multi-setups. Based on the tolerance stack-up model and process capability analysis, a tolerance assignment method is developed to determine the operation tolerance specifications in each setup. Optimal result is achieved by using tolerance grade representation and generic algorithm. Then based on a process variation analysis, a platform is established to identify the necessity of in-process inspection and design/select the inspection methods in quality control planning. Finally a general procedure is developed to diagnose the error sources and control the process variation based on the measurements.

Quality of service differentiation has never achieved much attention and relevance until the advent of the convergence of mobile wireless network and the fixed Internet, that is, Internet Protocol ( IP ) based mobile wireless networks, or wireless Internet. These networks are poised to support multimedia applications ' traffic with diverse QoS sensitivities. To date, most traffic transferred over the Internet still undergo best - effort forwarding, which does not guarantee whether or not traffic sent by a source gets to the intended destination, let alone loss and timing bounds. The major contribution of this thesis is three - fold. First, the thesis proposes a QoS - enabled wireless Internet access architecture, which leverages the micromobility in wireless standards to reduce mobile IP weaknesses, such as long handoff delay, to achieve effective interworking between mobile wireless networks and the global, fixed Internet. Although the idea here is applicable to any wireless standard, the design examples in this thesis are based on the IEEE 802.11b wireless local area network ( WLAN ) standard. Second, it proposes a framework for a class of wireless channel state dependent packet scheduling schemes, which consider the QoS requirements of the applications ' traffic ; the wireless channel state ( reflected in instantaneous data rate or noise level ) ; and optimises the usage of the expensive wireless resource. The operation of the QoS - enabled, channel state - dependent packet scheduler is analysed using optimisation theory, eigenanalysis and stochastic modelling. Third, the thesis analyses the effects of wireless channel properties on differentiated QoS ( DQoS ) schemes, using two - dimensional, channel - state - dependent queuing theory, matrix analytic methods to stochastic modelling and eigenanalysis. The ana - lytical model of DQoS schemes, especially models accounting for user scenarios such as speed of motion and wireless channel properties, such as fading, spatio - temporarily varying quality and low rate, is not properly covered in the open literature, and hence was a motivation for this part of the thesis. The wireless channel is discretized into discrete - time Markovian states based on the received signal - to - noise plus interference ratio ( SNIR ), which also reflects on the instantaneous link quality. The link quality, in turn, influences the QoS experienced by the transported applications sitting on top of the ISO / OSI protocol hierarchy. The parameters of the Markovian states are evaluated using realistic physical channel noise models and transceiver characteristics, such as modem. [ Different modems ( modulator / demodulator ) yields different transceiver properties such as sensitivity. The analysis in the thesis adopts QPSKand BPSK modulation. ] Source traffic models are used in the analysis. Lastly, the thesis provides an extensive introduction to, and provides a detailed background material for the new area of mobile wireless Internet systems, upon which considerable future research can be based. / Thesis (Ph.D.)--School of Electrical and Electronic Engineering, 2003.

The aim of this thesis was to develop a methodology to systematically investigate the effect of different procurement options on the outcome of a construction project. This methodology combined the qualitative analysis based on experts' performance assessment of each procurement option with quantitative analyses of generic process models for each option, in order to perform a comprehensive analysis of different procurement alternatives. This methodology was further applied to the specific problem of this research which was to assess the performance of Commissioning Delivery Systems (CDS). The goal was to use the findings from the study to provide a comparison between CDS, and assist Construction Owners in identifying the appropriate commissioning delivery option for their project. The process of each CDS was modeled, and systematic differences between different options were analyzed. Five major internal performance aspects of the commissioning process were identified based on literature: PAi1: Communication; PAi2: Validation; PAi3: Collaboration; PAi4: Integration; and PAi5: Integrity. These performance aspects were used as a basis for a Delphi study to obtain commissioning experts assessment of each CDS. Fourteen experts, representing different disciplines in the construction industry, participated in three phases of the Delphi study. A statistical measure was used to validate the expert performance assessments by measuring their level of consensus. Experts did not show any agreement on two performance aspects of Communication and Integration. These aspects were further investigated through quantitative analyses of process models. The developed methodology proved to be a valuable technique in analyzing the effect of procurement options on the outcome of a construction project. Based on the findings of the study, Owner-led Commissioning presented a higher performance rating than Designer-led Commissioning in four out of five performance aspects. Hence, Owner-led Commissioning is identified as a better alternative for procuring commissioning services on construction projects. Designer-led Commissioning presented a higher Communication performance than Owner-led Commissioning. At the same time, the Communication performance of both delivery options was very poor, which further indicates communication difficulties in current commissioning practices. Therefore, this study suggests a more-thorough investigation of the Communication aspect of commissioning process as a follow-up investigation.

M. Tech. Business Administration / This study was conducted at UNISA Library in 2012 in order to assess the perceptions regarding the process mapping exercise that was conducted by UNISA Library as a means of improving performance based on a random sample of 43 employees of UNISA Library. The study also focused on the implementation of continuous improvement at the UNISA Library.

D. Tech. Pharmaceutical Sciences. / Aims of the research project was to develop and optimise rapid quality control methods for H. gordonii raw material and products. The second aim was to determine whether the perceived active component of H. gordonii (P57) is transported across porcine intestinal and buccal mucosa.