By locating the value creating processes next to one another and by processing one unit at a time, work flows smoothly from one step to another and finally to the customer. This chain of value-creating processes is called a value stream. ... www.leanqad.com/glossary/
A value stream is a series of all actions required to fulfill a customer's request, both value added and not. A value stream contains a product or a family of products that have similar material and information flows. ... www.gemba.com/resources.cfm