Value adding and non-value adding activities in turnaround maintenance process: classification, validation, and benefits

The increasing popularity of lean thinking has made the analysis of value-adding (VA) and non-value adding (NVA) a popular activity to eliminate waste and improve productivity. Despite the great success of the Taiichi Ohno’s waste taxonomy and its adaptation and diffusion into the maintenance sector, a systematic classification of VA and NVA remains as a significant challenge for lean practitioners. The aim of this research is to develop a...