The application of Lean Sigma tools is an approach to optimizing processes in companies. It combines Lean techniques, which aim to eliminate waste and improve efficiency, with Six Sigma techniques, which seek to reduce variation and improve quality. Together, these tools help increase deliverability, reduce costs and improve customer satisfaction. Some of the common tools used include value stream analysis, continuous improvement, process definition, and statistical data analysis. The implementation of these tools can be applied to any type of industry, from manufacturing to services.

Lean tools can be grouped into four main categories

Waste elimination tools

These tools help identify and eliminate unnecessary activities or steps that do not add value to a process. Examples include value stream analysis, 5S, Kanban, SMED, TPM and VSM.

Planning and control tools

These tools help plan and control production and workflow. Examples include Ishikawa diagram, process map, cause and effect diagram, and decision table.

Continuous improvement tools

These tools seek to constantly identify and correct problems in order to continually improve the efficiency and quality of processes. Examples include logbooks, histograms, card charts, Pareto charts, and check tables.

Management and leadership tools

These tools help you manage and lead the team and the change process. Examples include PDCA strategy, team training, project management and change management.

Lean Tools

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