The economic design of variable acceptance sampling plan with rectifying inspection

Purpose - The purpose of this paper is to develop an economic model, which could determine the acceptance sampling plan that minimizes the quality cost for batch manufacturing. Design/methodology/approach - The authors propose a variable sampling plan based on one-sided capability indices for dealing with the quality cost requirement. Findings - The total quality cost is much more sensitive to process capability indices and inspected cost than internal and external failure costs. Research limitations/implications - The experimental data were randomly generated instead of real world ones. Practical implications - The proposed model is specifically designed for manufacturing industries with high sampling cost. Originality/value - The one-sided capability indices were utilized for the first time to be suitable for the purpose.