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Aplicação da metodologia Lean Seis Sigma na Indústria dos Lacticínios
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A indústria dos lacticínios é um setor em crescimento com grande importância para a eco-
nomia mundial. Nos últimos anos, as mudanças de paradigma na indústria transformadora têm
levado a novos desafios no setor dos lacticínios e a uma aposta em metodologias de melhoria
contínua. Contudo, devido às suas características intrínsecas, existem ainda lacunas na litera-
tura relativamente à aplicabilidade destas metodologias de melhoria, mais especificamente, do
Lean Seis Sigma (LSS), no setor.
O principal objetivo deste estudo de caso foi aumentar a eficiência e eficácia duma queijaria
através da metodologia LSS, testando a sua aplicabilidade no contexto do setor. Para tal, re-
correu-se à utilização do ciclo DMAIC, uma abordagem disciplinada, sistemática e quantitativa,
composta por cinco fases (Define, Measure, Analyse, Improve, Control), e vários métodos,
técnicas, e ferramentas, do LSS. Após a definição (Define), quantificação (Measure), e análise
do processo em estudo (Analyse), foram identificadas várias causas potenciais de ineficiências
e ineficácias no processo. De modo a eliminar ou minimizar as causas identificadas, foram
propostas ações de melhoria, tendo em conta limitações contextuais, assim como planos de
implementação (Improve). Com o intuito de assegurar a sustentabilidade das ações de melho-
ria foi ainda criado um plano de monitorização e controlo (Control)
A aplicação da metodologia permitiu identificar que as ineficiências do processo produtivo
estão relacionadas com problemas que causam variações e situações que exigem correção
de desvios. Algumas ferramentas específicas do LSS mostraram-se de difícil adaptação ao
contexto da indústria de laticínios, enquanto ferramentas mais generalistas foram mais úteis.
Embora a metodologia LSS permita a melhoria do processo, é mais adequada para medidas
sustentáveis a longo prazo do que para correções temporárias. Conclui-se que, embora seja
uma boa base para melhorar processos na indústria de laticínios, a metodologia não é a mais
adequada e aplicável.
The dairy industry is a growing sector of great importance to the global economy. In recent years, paradigm shifts in the manufacturing industry have led to new challenges in the dairy sector and a commitment to continuous improvement methodologies. However, due to their intrinsic characteristics, there are still gaps in the literature regarding the applicability of these improvement methodologies, more specifically Lean Six Sigma (LSS), in this sector. The main objective of this case study was to increase the efficiency and effectiveness of a cheese factory through the LSS methodology, testing its applicability in the context of the sec- tor. This was done using the DMAIC cycle, a disciplined, systematic, and quantitative approach made up of five phases (Define, Measure, Analyse, Improve, Control) and various LSS meth- ods, techniques, and tools. After defining (Define), quantifying (Measure) and analysing the process under study (Analyse), various potential causes of inefficiencies and ineffectiveness in the process were identified. In order to eliminate or minimize the causes identified, improve- ment actions were proposed, taking into account contextual limitations, as well as implemen- tation plans (Improve). In order to ensure the sustainability of the improvement actions, a mon- itoring and control plan was also created (Control). The application of the methodology made it possible to identify that inefficiencies in the pro- duction process are related to problems that cause variations and to situations that require deviations to be corrected. Some specific LSS tools proved difficult to adapt to the context of the dairy industry, while more generalised tools were more useful. Although the LSS methodology allows for the implementation of improvement actions, it is more suitable for long-term sustainable measures than for temporary corrections. The conclu- sion is that, although it is a good basis for improving processes in the dairy industry, the meth- odology is not the most suitable and applicable.
The dairy industry is a growing sector of great importance to the global economy. In recent years, paradigm shifts in the manufacturing industry have led to new challenges in the dairy sector and a commitment to continuous improvement methodologies. However, due to their intrinsic characteristics, there are still gaps in the literature regarding the applicability of these improvement methodologies, more specifically Lean Six Sigma (LSS), in this sector. The main objective of this case study was to increase the efficiency and effectiveness of a cheese factory through the LSS methodology, testing its applicability in the context of the sec- tor. This was done using the DMAIC cycle, a disciplined, systematic, and quantitative approach made up of five phases (Define, Measure, Analyse, Improve, Control) and various LSS meth- ods, techniques, and tools. After defining (Define), quantifying (Measure) and analysing the process under study (Analyse), various potential causes of inefficiencies and ineffectiveness in the process were identified. In order to eliminate or minimize the causes identified, improve- ment actions were proposed, taking into account contextual limitations, as well as implemen- tation plans (Improve). In order to ensure the sustainability of the improvement actions, a mon- itoring and control plan was also created (Control). The application of the methodology made it possible to identify that inefficiencies in the pro- duction process are related to problems that cause variations and to situations that require deviations to be corrected. Some specific LSS tools proved difficult to adapt to the context of the dairy industry, while more generalised tools were more useful. Although the LSS methodology allows for the implementation of improvement actions, it is more suitable for long-term sustainable measures than for temporary corrections. The conclu- sion is that, although it is a good basis for improving processes in the dairy industry, the meth- odology is not the most suitable and applicable.
Descrição
Palavras-chave
Lean Seis Sigma Ciclo DMAIC Indústria Lacticínios