V.E.R.A. -- Virtual Entity of Relevant Acronyms (February 2016):

MRP
       Material / Manufacturing Resource Planning


V.E.R.A. -- Virtual Entity of Relevant Acronyms (February 2016):

MRP
       Material Requirement Planning (PPS, CIM)


The Free On-line Dictionary of Computing (30 December 2018):

Material Requirements Planning
MRP

    (MRP) A system for effectively managing material
   requirements in a manufacturing process.

   Information systems have long been an important part of the
   manufacturing environment.  In the 1960s, manufacturers
   developed Material Requirements Planning (MRP).  According to
   the American Production and Inventory Control Society,
   Inc. (APICS), MRP is a set of techniques that uses bill of
   material data, inventory data, and the master production
   schedule to calculate requirements for materials.  It makes
   recommendations to reorder materials.  Furthermore, because it
   is time-phased, it makes recommendations to reschedule open
   orders when due dates and need dates are not in phase.
   Time-phased MRP begins with the items listed on the Master
   Production Schedule and determines the quantity of all
   components and materials required to fabricate those items and
   the date that the components and material are required.
   Time-phased MRP is accomplished by exploding the bill of
   material, adjusting for inventory quantities on hand or on
   order and offsetting the net requirements by the appropriate
   lead times.

   See also Manufacturer Resource Planning.

   (1999-02-16)