Table 3 Summary of key findings... | Emerald Publishing

Table 3

Summary of key findings

Bibliometric analysis key findings
Country Analysis	Spain and the US lead in publication production. However, most publications come from the Asia continent Spanish publications emphasize improving operational performance in the service sector US publications emphasize improving operational performance in the manufacturing sector
Keyword Analysis	TQM and operational performance are the dominant research areas Based on the keyword analysis and clusters formed, QM seems to be linked to performance improvement across various sectors Some QM practices are unique to developing countries, showing a positive impact on operational performance QM is consistently linked to improvements in operational, sustainable, and financial performance

Bibliometric analysis key findings
Country Analysis	Spain and the US lead in publication production. However, most publications come from the Asia continent Spanish publications emphasize improving operational performance in the service sector US publications emphasize improving operational performance in the manufacturing sector
Keyword Analysis	TQM and operational performance are the dominant research areas Based on the keyword analysis and clusters formed, QM seems to be linked to performance improvement across various sectors Some QM practices are unique to developing countries, showing a positive impact on operational performance QM is consistently linked to improvements in operational, sustainable, and financial performance

Systematic review key findings
Key QM Tools Discussed	Total Quality Management (TQM), Total Productive Maintenance (TPM), Just-in-Time (JIT), Lean, Six Sigma, Lean Six Sigma (LSS), and Industry 4.0 integration
Top Performance Metrics	Manufacturing Sector	Quality, time, productivity, time-to-delivery, innovation, and manufacturer responsiveness
Top Performance Metrics	Service Sector	Customer satisfaction, customer acquisition, time of service, service quality, and process effectiveness
Observed Theme	QM practices generally positively impact operational performance in manufacturing and service industries, enhancing quality, customer satisfaction, inventory management, process efficiency, and innovation. Further details are provided in Table 1. However, it is still unclear to practitioners and decision-makers what QM initiative to adopt in response to a certain challenge or to achieve a certain quality goal
Implications for Future Research	This study guides practitioners and decision-makers interested in employing QM techniques to enhance operational performance. It suggests exploring the impact of Q4.0 on operational performance and the need for empirical studies comparing previous tools with Q4.0

Systematic review key findings
Key QM Tools Discussed	Total Quality Management (TQM), Total Productive Maintenance (TPM), Just-in-Time (JIT), Lean, Six Sigma, Lean Six Sigma (LSS), and Industry 4.0 integration
Top Performance Metrics	Manufacturing Sector	Quality, time, productivity, time-to-delivery, innovation, and manufacturer responsiveness
Top Performance Metrics	Service Sector	Customer satisfaction, customer acquisition, time of service, service quality, and process effectiveness
Observed Theme	QM practices generally positively impact operational performance in manufacturing and service industries, enhancing quality, customer satisfaction, inventory management, process efficiency, and innovation. Further details are provided in Table 1. However, it is still unclear to practitioners and decision-makers what QM initiative to adopt in response to a certain challenge or to achieve a certain quality goal
Implications for Future Research	This study guides practitioners and decision-makers interested in employing QM techniques to enhance operational performance. It suggests exploring the impact of Q4.0 on operational performance and the need for empirical studies comparing previous tools with Q4.0

Source(s): Authors’ own work