When less is better: Insights from the product mix dilemma from the Theory of Constraints perspective
Nenhuma Miniatura disponível
Data
2013-07-03
Autores
de Souza, Fernando Bernardi
Sobreiro, Vinicius Amorim
Nagano, Marcelo Seido
de Souza Manfrinato, Jair Wagner
Título da Revista
ISSN da Revista
Título de Volume
Editor
Resumo
Perhaps due to its origins in a production scheduling software called Optimised Production Technology (OPT), plus the idea of focusing on system constraints, many believe that the Theory of Constraints (TOC) has a vocation for optimal solutions. Those who assess TOC according to this perspective indicate that it guarantees an optimal solution only in certain circumstances. In opposition to this view and founded on a numeric example of a production mix problem, this paper shows, by means of TOC assumptions, why the TOC should not be compared to methods intended to seek optimal or the best solutions, but rather sufficiently good solutions, possible in non-deterministic environments. Moreover, we extend the range of relevant literature on product mix decision by introducing a heuristic based on the uniquely identified work that aims at achieving feasible solutions according to the TOC point of view. The heuristic proposed is tested on 100 production mix problems and the results are compared with the responses obtained with the use of Integer Linear Programming. The results show that the heuristic gives good results on average, but performance falls sharply in some situations. © 2013 Copyright Taylor and Francis Group, LLC.
Descrição
Palavras-chave
excess capacity, Integer Linear Programming, optimization, production mix, Theory of Constraints
Como citar
International Journal of Production Research.