Journal article

Proposition of a method for stochastic analysis of value streams

Gabriel Preuss Luz, Guilherme Luz Tortorella, Marina Bouzon, Jose Garza-Reyes, Paolo Gaiardelli

PRODUCTION PLANNING & CONTROL | TAYLOR & FRANCIS LTD | Published : 2020

Abstract

This article aims at proposing a method to stochastically analyze values streams taking into consideration the effect of critical uncertainty sources on lead time. The proposed method combines value stream mapping (VSM) and Monte Carlo simulation to identify improvement opportunities. To illustrate this approach, we carried out a case study in the special nutrition value stream of a Brazilian public hospital. Results show that the proposed method allows the identification of improvement opportunities that would not be considered in the classical deterministic VSM approach. Further, the integration of the stochastic analysis enables the determination of a more realistic lead time, which suppo..

View full abstract