Yeah, so 5S basically means sorting, setting in order, keeping it shiny, standardizing it and sustaining it for a longer period of time. So this has evolved from a Toyota manufacturing plant, as far as I remember, in the year 1950, Toyota was the first manufacturing plant to implement 5S into their current systems and I believe a 6th S, that is the safety, has been added to these 5S. It basically means seve, seito, seiso, seiketsu, shitsuke.
