Process Capability Indices
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Recent papers in Process Capability Indices
Process performance can be analyzed by using process capability indices (PCIs), which are summary statistics to depict the process' location and dispersion successfully. Many PCIs have been proposed in the literature. Although they are... more
Lean Six Sigma Measure Phase Tollgate Templates are a guide to Lean Six Sigma Green Belt, Lean Six Sigma Black Belt, and Lean Six Sigma Master Black Belt Projects. Lean Six Sigma Practitioners use the DMAIC (Define, Measure, Analyze,... more
The persistent high failure of change and transformation initiatives, to meet their expected outcomes, even with prevailing change management process and knowledge, has driven our need to understand what influences a human systems... more
The Organisation CMF is the term we use to describe the structured Body of Knowledge, Models, & Assessment Tools designed to improve the outcomes relating to organisation change and transformation. It is underpinned by Dynamic Systems... more
Six Sigma is being Implemented all over the World as a successful Quality Improvement Methodology. This article provides a description of Six Sigma Project implemented at Local manufacturing Company. The Company Manufactures Pump Casings... more
The deployment of statistical process control (SPC) in manufacturing environments is a prominent global phenomenon. Statistical Process Control is largely used in industries for monitoring the process parameters. It is a standard method... more
Many organizations are mandating the use of process capability indices to measure and reduce variability. Managers may ®nd the use of such indices as unreliable when the interaction of the dependency structure and outliers mask potential... more
Process capability indices (PCIs) and parts per million (PPM) nonconforming (NC) levels are widely used in quality improvement programs for quantifying the capability of a process to meet specification requirements. Calculation of PCIs... more
Process capability indices (PCIs) for processes with symmetric tolerances have received substantial research attention. But, PCIs for processes with asymmetric tolerances have been comparatively neglected. Recently, Boyles (1994) reviewed... more
There is a great deal of interest in the manufacturing industry for quantitative measures of process performance with multiple quality characteristics. Unfortunately, multivariate process capability indices that are currently employed,... more
In many industrial instances product quality depends on a multitude of dependent characteristics and as a consequence, attention on capability indices shifts from univariate domain to multivariate domain. In this research fuzzy inference... more
It is a conceptual paper to demonstrate the importance of application of Six Sigma DMAIC methodlogy to a PVC pipe manufacturing process and to realize the role played by measure phase for successful completion of Six Sigma. Measure phase... more
Process Capability indices have become popular for describing how well a process meets specified tolerances. The lack of affinity with the process nonconformance probability p and the difficulty of dealing with the sampling distribution... more
Manufacturing processes are often based on more than one quality characteristic. When these variables are correlated the process capability analysis should be performed using multivariate statistical methodologies. Although there is a... more
Process performance can be analyzed by using process capability indices (PCIs), which are summary statistics to depict the process location and dispersion successfully. Although they are very usable statistics, they have some limitations... more
In manufacturing science, process capability indices play a role analogous to economic indices in government statistics. The existing capability indices are passive devices whose main role is to retroactively monitor process capability.... more
Process capability indices are considered to be one of the important quality measurement tools for the continuous improvement of quality and productivity. The most commonly used indices assume that process data are normally distributed.... more
The main objective of the present study is to present the concept of process capability and to focus its significance in pharmaceutical industries. From a practical view point, the control charts (such as X and R hart) sometimes are not... more
It is a conceptual paper to demonstrate the importance of application of Six Sigma DMAIC methodlogy to a PVC pipe manufacturing process and to realize the role played by measure phase for successful completion of Six Sigma. Measure phase... more
This paper uses the methodology of an intervention case study to examine a manufacturing process for bending metal tubes into oven flues. We found that the manufacturer, Stanley Engineered Components (SEC), was producing parts that were... more
Process capability indices are considered to be one of the important quality measurement tools for the continuous improvement of quality and productivity. The most commonly used indices assume that process data are normally distributed.... more
Process performance can be analyzed by using process capability indices (PCIs), which are summary statistics to depict the process location and dispersion successfully. Traditional PCIs are generally used for a process which has a... more
optimization; Non-normal responses; NORTA inverse transformation; Multivariate process capability index.
In manufacturing science, process capability indices play a role analogous to economic indices in government statistics. The existing capability indices are passive devices whose main role is to retroactively monitor process capability.... more
Most of the researches developed for single response and multi response optimization problems are based on the normality assumption of responses, while this assumption does not necessarily hold in real situations. In the real world... more
Most of the researches developed for single response and multi response optimization problems are based on the normality assumption of responses, while this assumption does not necessarily hold in real situations. In the real world... more
Fuzzy process capability indices are used to determine whether a production process is capable of producing items within specification tolerance, where instead of precise quality we have two membership functions for specification limits.... more
Process performance can be analyzed by using process capability indices (PCIs), which are summary statistics to depict the process' location and dispersion successfully. Many PCIs have been proposed in the literature. Although they are... more
Water covers over 70% of the Earth surface and is a very important resource to people and the environment. Water pollution affects drinking water, rivers, lakes and oceans all over the world. This consequently harms human health and the... more
Process performance can be analyzed by using process capability indices (PCIs), which are summary statistics to depict the process location and dispersion successfully. Although they are very usable statistics, they have some limitations... more
In this paper a new process capability index (Cpq) has been introduced, which is easy to compute and performs well when compared with its natural competitor (Cp,).
In manufacturing science, process capability indices play a role analogous to economic indices in government statistics. The existing capability indices are passive devices whose main role is to retroactively monitor process capability.... more
In manufacturing science, process capability indices play a role analogous to economic indices in government statistics. The existing capability indices are passive devices whose main role is to retroactively monitor process capability.... more
... 149-176 [14] Box, GEP, and Cox, DR: 'An Analysis of Transformations', Journal of the Royal Statistical Society Series B-Statistical Methodology, 1964, 26, (2), pp. 211-252 [15]... more
Process capability indices are intended to provide a single-number assessment of the consistency of a manufacturing process relative to the engineering specification limits on quality characteristics. In many industrial instances product... more