SHEWHART CONTROL CHARTS - AN IRREPLACEABLE TOOL OF EXPLANATORY DATA ANALYSIS WITH UNDERESTIMATED POTENTIAL
Journal: International Journal for Quality Research (Vol.18, No. 2)Publication Date: 2024-06-30
Authors : Vladimir Shper Svetlana Sheremetyeva Vladimir Smelov Elena Khunuzidi;
Page : 417-432
Keywords : Shewhart control chart; Assignable causes of variation; Nonhomogeneity; Nonrandomness; Process stability; Capability indices;
Abstract
In this paper some issues relative to the gap between the traditional theory of control charts and real problems practitioners encounter are discussed. We consider both the general reasons for this discrepancy and different examples of misunderstandings. The trend to develop statistics as mathematical branch of science in the area of statistical process control has led to (i) ignoring many real complexities; (ii) creating many new types of charts that rarely help practitioners to improve their processes. We offer some practical advices, such as the introduction of two types of the assignable causes of variations (internal and external); the refusal from a traditional assumption that repetitive measurements are always normally distributed; the simple and practically convenient technique to calculate control chart limits for highly non-normal data. As the main direction for future efforts, we offer to start discussion about the implementation of Shewhart control charts into the program of school education.
Other Latest Articles
- Restoration of global forests and biodiversity through green energy
- THE IMPACTS OF PERCEIVED ORGANIZATIONAL SUPPORT ON TRUST IN SUPERVISOR AND EMPLOYEES' CREATIVITY
- OPPORTUNITIES AND LIMITATIONS OF THE IMPLEMENTATION OF CONTEMPORARY PERFORMANCE MEASUREMENT MODELS IN THE CONTEXT OF PRE-UNIVERSITY EDUCATION
- FORECASTING MACROECONOMIC INDICATORS OF THE DEVELOPMENT OF THE UKRAINIAN ECONOMY DURING THE WAR (2022-2023)
- ECONOMIC FEASIBILITY OF WIND GENERATION IN NORTHEAST BRAZIL
Last modified: 2024-05-19 02:24:28