IMPROVING STATIC COMPLEXITY IN MANUFACTURING SYSTEMS: UNDER THE ECONOMIC LOT SIZING PROBLEM (ELSP) AND SINGLE MINUTE EXCHANGE DIE (SMED) APPROACH

Abstract

The application of modern methodologies focused on lean manufacturing such as Single Minute Exchange Die (SMED) generates
benefits for companies, aimed at reducing setup times, reducing operational costs and increasing productivity. Its implementation
requires the management of indicators that allow the evaluation and analysis of the system, in this case the entropic measurement of static complexity. This paper develops an experimental case based on the improvement of static complexity using the SMED
methodology, a modern method that is not widely used in practice. The methodological proposal presents two scenarios, one where the Economic Lot Sizing Problem (ELSP) model is developed and the other where SMED is used. In both scenarios, static
complexity is studied and calculated, and a comparative analysis is carried out. The results show that with the implementation of
the technique the setup time is reduced by approximately 50%, the static complexity is reduced by 3.3% and the operational costs
are reduced by 29.3%, constituting an important economic saving for the company that will be tangible in the medium and long
term.