A theoretical framework for understanding why JIT reduces cost and cycle time and improves quality
✍ Scribed by John Miltenburg
- Publisher
- Elsevier Science
- Year
- 1993
- Tongue
- English
- Weight
- 859 KB
- Volume
- 30-31
- Category
- Article
- ISSN
- 0925-5273
No coin nor oath required. For personal study only.
✦ Synopsis
From the point of vtew of productlon planmng and control the basic butldmg blocks m the classic Just-In-Time productton system are (1) a pull control system, (2) move and production kanban.
(3) a level schedule, and (4) enforced waste Identification and removal through controlled reductions in Inventory. There IS considerable empirtcal evidence showing that where JIT has been successfully implemented.
substanttal reductions in cost. cycle time. and Inventory along with stgnificant Improvements in quality have resulted.
In this paper a mathemattcal framework. which models the classic JIT production system. is presented. Analysis of thts mathematical model shows precisely how JIT gives improvements m cost, cycle time. Inventory and quality. The model permits the extent of the improvements to be determined One of the more interesting results of the analysts is the followmg. Move kanban have virtually no effect on any improvements to cost. Consequently a simpler JIT production system employmg only one type of kanban may be preferred to the classical JIT system with production and move kanban. A mathematical model of the smgle kanban JIT system ts also analyzed.