Agile manufacturing: is the ability to accomplish rapid changeover between the manufacture of different assemblies. Rapid changeover is further defined as the ability to move from the assembly of one product to the assembly of a similar product with a minimum of change in tooling and software. Rapid changeover enables the production of small lot sizes, allowing for `just-in-time’ production.
The link is to a page with a list of links to other pages about agile manufacturing. Lots of good stuff to be found there.