Rodrigues, JorgeSá, José CarlosSilva, Francisco J. G.Ferreira, Luís PintoPereira, Maria Teresa2020-04-222020-04-222019978-88-9385-155-8http://hdl.handle.net/10400.22/15840This study was undertaken at a Small and Medium-sized Enterprise (SME) in the metalworking sector, where Lean Management has been implemented through several Lean Tools (LT) and their variations. This study comprised two main goals. The first involved demonstrating which LT allow the highest impact during the implementation phase, thus producing great influence both in terms of organization and operational results, as well as in the context of employees’ motivation. The second goal consisted of introducing procedure changes based on the Management of Human Resources through Lean Leadership tools. By implementing these two objectives, one was able to achieve an increase of 8,5% in machine occupancy rate, and a reduction of 27,9% regarding the costs of defective products per hour.engManagement by ObjectivesKPIDaily KaizenVisual ManagementPDCA5S5 WhysYokotenBrainstormingconference object