The Experts below are selected from a list of 21 Experts worldwide ranked by ideXlab platform
S.c. Chen - One of the best experts on this subject based on the ideXlab platform.
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Process Quality Analysis of Products
The International Journal of Advanced Manufacturing Technology, 2002Co-Authors: Kuen-suan Chen, S.c. ChenAbstract:Process capability indices are widely regarded as a flexible means of evaluating the Quality and performance of a process. Accreditation by the Quality System Requirement QS9000 requires an agent to conduct a global evaluation on the process capability over the entire product family from a plant. Generally, the process capability of the whole product family is an important reference for evaluation when producing a new product or designing a new process. Therefore developing a scheme to evaluate the process capability of the whole product family or series is crucial for industry. This paper takes the production of capacitors as an example of a new method for evaluating the process capability of a whole product family. As the Quality characteristic for producing capacitors is “the smaller the better”, the upper specification limits of the capacitors of various specifications should first be established. The process capability index Cpu for products for which “smaller is better” is then used as an evaluation tool to calculate the process capability indices for individual specified products. The relationship between the process capability indices and the yield will be studied. A process capability index is proposed to reflect the global yield of the whole product family and to serve as a reference for evaluating process capability for designing new processes or developing new products. The process capabilities for all products can thus be evaluated and the performance of each process can be evaluated according to the colour management method. Managers can determine easily whether products meet their specifications and take action to improve them if necessary, according to the colour management method.
Guoqiang Wang - One of the best experts on this subject based on the ideXlab platform.
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An Immune Approach to Autonomic Quality System for Complex Production System
2008 IEEE SICE International Symposium on System Integration, 2008Co-Authors: Genbao Zhang, Haifeng Zeng, Guoqiang WangAbstract:Product Quality is a major concern for manufacturing enterprises, so it is of key importance to monitor and control the soundness and effectiveness of production Systems. Centralized and hierarchical control architectures that characterized by strong master-slave relationships is still widely used. But with the increasing complexity of the production System and the products itself, Quality control for CPS (Complex Production System) becomes more and more difficult. Based on the analysis of Quality System Requirement for CPS, we found that autonomic System is a potentially useful Quality paradigm for CPS. But a completely decentralized solution is unstable and prohibitively complex. A compromise has to be found. This paper draws inspiration from biological immune System to learn valuable lessons for autonomic manufacturing defense System. Important immunological metaphors, such as feature extraction, learing, memory, and its distributive nature are utilized to adapt to the new Requirements of Quality System for CPS.
Kuen-suan Chen - One of the best experts on this subject based on the ideXlab platform.
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Process Quality Analysis of Products
The International Journal of Advanced Manufacturing Technology, 2002Co-Authors: Kuen-suan Chen, S.c. ChenAbstract:Process capability indices are widely regarded as a flexible means of evaluating the Quality and performance of a process. Accreditation by the Quality System Requirement QS9000 requires an agent to conduct a global evaluation on the process capability over the entire product family from a plant. Generally, the process capability of the whole product family is an important reference for evaluation when producing a new product or designing a new process. Therefore developing a scheme to evaluate the process capability of the whole product family or series is crucial for industry. This paper takes the production of capacitors as an example of a new method for evaluating the process capability of a whole product family. As the Quality characteristic for producing capacitors is “the smaller the better”, the upper specification limits of the capacitors of various specifications should first be established. The process capability index Cpu for products for which “smaller is better” is then used as an evaluation tool to calculate the process capability indices for individual specified products. The relationship between the process capability indices and the yield will be studied. A process capability index is proposed to reflect the global yield of the whole product family and to serve as a reference for evaluating process capability for designing new processes or developing new products. The process capabilities for all products can thus be evaluated and the performance of each process can be evaluated according to the colour management method. Managers can determine easily whether products meet their specifications and take action to improve them if necessary, according to the colour management method.
Cheang Sze Yeo - One of the best experts on this subject based on the ideXlab platform.
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The Effect Of Non-Product -Based Performance Criteria Towards Supplier Selection Process
2005Co-Authors: Cheang Sze YeoAbstract:This study attempts to identify the effect of non-product-based performance criteria (qualitative factors of soft criteria) towards supplier selection process. Eight key non-product-based performance criteria discussed in the study are delivery, responsiveness, organization size, financial status, location of manufacturing plant, relationship history, certificates or Quality System Requirement and organization culture.
Lihong Zhao - One of the best experts on this subject based on the ideXlab platform.
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scenario based modeling and verification of System Requirement specification for the european train control System
WIT Transactions on the Built Environment, 2010Co-Authors: Wumei Tang, Bin Ning, Tianhua Xu, Lihong ZhaoAbstract:This paper on scenario-based modeling and verification of the System Requirement specifications for the European Train Control System level 2(ETCS L2) is from the proceedings of the 12th International Conference on Computer System Design and Operation in Railways and Other Transit Systems, held in Beijing, China, in 2010. The authors describe the high Quality System Requirement Specification (SRS), which is at the heart of the design and development of the European Train Control System level 2 (ETCS L2) with high safety and efficiency. However, they note that the SRS, written in natural language with a shortage of rigorous mathematic foundation, makes it difficult to meet the high Quality required. They then propose the integration of a scenario-based model with a formal method, to model and verify safety critical System (e.g., train control System). First, the relevant operational scenarios are extracted from the SRS, then the corresponding UML sequence diagrams are constructed and finally the sequence diagrams are verified by the formal analysis tool (i.e., NuSMV) through a series transformation rules from UML sequences to NuSMV. The authors conclude by outlining the advantages of the proposed method: the scenarios modeled by sequence diagram facilitates communication between the domain experts and the designer, because UML is a standard software package; the formal method allows the analysis of all the possible scenarios that ETCS L2 can possibly generate; the mapping rules from the scenario to sequence diagrams and the formal method ensure consistency between the SRS and the formal model.
