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Recently, several areas are successfully applying the Lean Six Sigma methodology, specifically in healthcare, public services, higher education institutions and manufacturing industries. This study aims to present an extensive literature review involving Lean Six Sigma practical applications in the last five years, described in a case studies format.

A systematic literature review was conducted, and 39 articles were selected and analyzed.

An increase in Lean Six Sigma applications in healthcare and higher education institutions was identified. Furthermore, Lean Six Sigma is effectively applied in several areas and is continuously used in traditional industries. The main critical success factor identified was leadership and management involvement, project management and organizational infrastructure, as well as training and education. Also, the main difficulties found are related to the organization's culture and developing communication with leaders and managers.

The main difficulties found in this research are related to the lack of data presented in some articles analyzed, where only information about how the Lean Six Sigma application was conducted is shown, not mentioning difficulties or success factors identified.

Case studies are fundamental to help popularize Lean Six Sigma applications, showing a real-life scenario of how the methodology is implemented, the main difficulties encountered and critical success factors found. Thus, the value of this study is promoting and developing research involving Lean Six Sigma case study applications to guide new researchers and practitioners on the subject.

The purpose of this paper is to propose a competitiveness measurement system for start-ups considering multiple critical success factors.

The methodological approach uses concepts from key performance indicators (KPIs) and multi-criteria decision analysis (MCDA) based on the fuzzy AHP (FAHP) methodology to weight the criteria related to fundamental points of view (FPVs) and critical success factors (CSFs).

Data collection was performed with 21 specialists and 28 start-ups, which returned the weights and performance of CSFs and FPVs related to the start-ups’ competitiveness. The results show only one start-up had a highly competitive global performance. In addition, all start-ups showed low competitiveness related to industry 4.0 technologies.

The article collaborates with existing research as a starting point for discussions on the subject, considering that previous research did not address the measurement of the start-ups’ competitiveness level through multiple factors, as developed in this article. In addition, we provide decision-makers and other stakeholders in the start-up ecosystem with a robust measurement system to assess business competitiveness and diagnose the company’s situation.

This study aims to understand the manifestation and adherence of performance management system (PMS) components in Brazilian startups, concurrently considering the different stages of development and catalyzing factors.

We gathered data through semi-structured interviews with founders and C-level executives from 19 startups. We used an inductive and exploratory method to spot patterns and differences through content analysis, aiming for a contextual understanding of startup PMS manifestation.

We analyzed the PMS of each startup, highlighting the consistency and differences among PMS components in each stage, considering the value proposition, goals, performance perspectives, monitoring indicators, action plans and performance evaluation processes. We also observe various catalyst factors that played an important role in accelerating the early development of the PMS in each stage.

This study provides a practical understanding of the meaning of each PMS component maturity that could be applied to startups in different stages and the catalyzing factors that played an important role in accelerating the initial development of PMS, providing practitioners with a holistic and situated context approach.

This is one of the first studies to provide empirical evidence on the manifestation and adherence of different components of the PMS in Brazilian startups, considering concurrently the organizational life cycle and existing catalyzing factors to the reality of these organizations.