Generalized quick-switch sampling systems indexed by Taguchi capability with record traceability. (October 2022)

• Record Type: Journal Article
• Authors: Shu, Ming-Hung; Wang, To-Cheng; Hsu, Bi-Min
• Is Part Of: Computers & industrial engineering. Volume 172:Part A(2022)
• Publication Date: 2022-10
• Subjects: Variables sampling system -- Taguchi capability index -- Generalized quick-switch sampling system -- Average run length -- Web-based app; Engineering -- Data processing -- Periodicals; Industrial engineering -- Periodicals; 620.00285
• DOI: 10.1016/j.cie.2022.108577
• Languages: English
• ISSNs: 0360-8352

Abstract

Highlights: Propose a generalized quick-switch sampling system of variable measurements (GVQSS). The GVQSS remedies the current VQSS systems in the research. The GVQSS demonstrates superior cost-effectiveness and keen discriminatory power. The GVQSS enables the traceability of inspections history. The GVQSS establishes a long-term lot-delivery strategy in supply chain management. Abstract: Acceptance sampling plans of variable measurements quantified by process capability index have become compelling because they can validate how well the upstream lots (process) fit the downstream high-yield requirements in a more discriminatory and economic way. Recent research has accomplished two contrasting systems of quick-switch sampling (VQSS) based on the Taguchi capability index, namely acceptance criterion-switching VQSS (Balamurali and Usha, 2019, published in Journal of the Operational Research Society) and sample size-switching (Wang and Wu, 2021, published in Computers & Industrial Engineering) VQSS. Both studies, nonetheless, lacked in discerning the system's inspection strengths and weaknesses, nor investigated their joint performance regarding sampling efficiency and sensitivity towards abrupt deviation of the process capability. Moreover, for a sequential lot-inspection process, their simplified mathematical formulation has overlooked the importance of lot-and-sample identification in the supply chain. To forward improvements, we develop a generalized VQSS (GVQSS) system with lot-and-sample records traceability. The GVQSS system activates the concurrent changes of sample size and acceptance criterion based on the past result for lot disposition. It can also accommodate two existing VQSS systems. Additionally, an R-Shiny interactive web app is constructed for practitioners to easily acquire the optimal criteria of VQSS systems. These advancements enable the GVQSS to deal with different phases of supplier–buyer partnerships. Finally, we demonstrate how to apply the GVQSS system through a real-world case.