Zzero defects- A quality philosophy based on the idea that a level of perfect quality, as in zero defects, is achievable and should be a company-wide goal. It emphasizes the examination of all factors that lead to quality problems versus a system that builds in an average or acceptable quality level.
zero float- A project activity condition of no excess or slack time, where delay in the activity delays the next activity or possibly the entire project.
zero inventory- A term initially used to represent the optimum stock level in a just-in-time system and the idea that inventory is a liability instead of an asset.
zone picking- A warehouse order picking scheme utilizing zones in which pickers select materials within their own area only and the total material required for the order is later grouped together.