Análise dos pontos de convergência entre tecnologias da Indústria 4.0 e práticas Lean Seis Sigma em processos de manufatura: um estudo multicasos
Abstract
The literature on operational excellence recognizes that the Lean Six Sigma approach can
promote the continuous improvement of business processes in terms of quality, cost, and speed.
On the other hand, the recent paradigm of Industry 4.0 has been creating challenges and
opportunities regarding the adoption of digital technologies in manufacturing processes and
connecting the physical world to the virtual world through Cyber-physical Systems. Although
the literature presents studies that integrate practices isolated from Lean Manufacturing or Six
Sigma approaches with specific technologies from Industry 4.0, the systemic integration
between these elements still represents an important theoretical gap. This thesis aims to analyze
the points of convergence between technologies of industry 4.0 and Lean Six Sigma practices
in manufacturing processes. To this end, a systematic literature review was carried out, giving
rise to a conceptual research analysis structure that brings together thirteen points of
convergence. This structure covers five categories of analysis directly related to research
questions: points of convergence, information technology requirements, automation
requirements, competence requirements, and results. In order to validate this structure, a multi-case study was conducted involving two companies in the automotive sector, with experience
in Lean Six Sigma practices, whose manufacturing processes demonstrated evidence of
conversion to the Industry 4.0 model. The research approach combined qualitative and
quantitative techniques and made it possible to measure the perceptions of interviewees, as well
as the analysis of internal documents and on-site observations. The empirical evidence
highlighted the most expressive points of contact in these organizations and allowed the
establishment of theoretical propositions. As a practical contribution, this study may assist in
development of digital transformation strategies within the scope of operational excellence
initiatives.
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