Re-engineering

Reengineering (or re-engineering) is the radical redesign of an  organization's processes, especially its business processes. Rather than organizing a firm into functional specialties (like production, accounting, marketing, etc.) and looking at the tasks that each function performs, we should, according to the reengineering theory, be looking at complete processes from materials acquisition, to production, to marketing and distribution. The firm should be re-engineered into a series of processes.
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The examination and modification of a system to reconstitute it in a new form and the subsequent implementation of the new form.
http://www.erg.abdn.ac.uk/users/brant/sre.
(1994-12-23)

changing a business model or a business process to improve productivity.