N. B. Kar

S. Das

A. Ghosh

D. Banerjee

Abstract

This paper deals with the application of fuzzy multinomial control chart (FM-chart) with variable sample size for characterizing the mulberry multibivoltine silk cocoons quality and the result is compared with the conventional p-chart. Silk cocoons quality has been classified under various categories such as reject, poor, medium, good and excellent. The FM-chart offers a holistic approach about the quality of silk cocoons by considering the proportions of all categories; however, p-chart only considers the proportion of rejected category of silk cocoons. Consequently, FM-chart can able to monitor the silk cocoon quality characteristic in better way than p-chart.

Keywords- Cocoons quality, Control limits, Fuzzy Control Chart, FM –chart, P–chart, Silk cocoons.