Please search the abbreviations by using the alphabet links above.

The purpose of this tool is to list and define abbreviations used within the supply chain, logistics and Enterprise Resource Planning (ERP) areas. Please Email any terms that you think are missing or where the definition is incorrect. All suggestions will be credited. This work is copyrighted. 

 
MAA
Management Analysis and Accounting
 
MAM
Mobile Asset Management
 
MAPS
Manufacturing, Accounting and Planning System - term used by Pfizer
 
MAS
Managed Application Solution - similar to ASP where a third-party manages your systems for you.
 
MBA
Mobile Business Applications. Also Master of Business Administration qualification.
 
MBWA
Management By Walking About
 
MDF
Market Development Funds - co-operative marketing funding given by manufacturers to resellers (channel).
 
Also Mobile Data Framework.
 
MDG
Master Data Generator
 
MDM
Master Data Management
 
MES
Manufacturing Execution System - plant floor routing and process management, simulation and modeling. These systems, which can include finite scheduling functionality, ensure that parts, tools, resources, instructions etc. all arrive at the right place at the right time. MES has now been succeeded by MOM
 
MHE
Materials / Mechanical Handling Equipment - Palletisers, sortation systems, carousels etc.
 
MIS
Management Information System - business reporting and analysis software tools
 
MM
Materials Management - SAP module name
 
MOA
Memorandum of Agreement
 
MOM
Manufacturing Operations Management, the successor to MES - Manufacturing Execution Systems. S95 is a standard, developed by the ISA - Instrumentation, Systems and Automation Society, that defines the terminology between an ERP system and an MES (now MOM) system; essentially that is the interface from the plant to the enterprise.
 
MOU
Memorandum of Understanding (Thanks to Vivek Narayan).
 
MP
Marketplace
 
MPS
Master Production Schedule - the plan for completion of orders for finished goods, whether for stock or customer order. In an MRP II system this is normally managed semi-manually by the 'master scheduler'.
 
MR
Materials Replenishment
 
MRO
Maintenance Repair Overhaul (or Operations or Operating supplies) - specialized industry sector usually associated with service businesses repairing photocopiers say. This is very different from the manufacturing mechanisms described above.
 
MRO is also used as shorthand to describe non-production purchased materials in e-Procurement environments. In this case MRO would mean consumables (paper, ink cartridges) and spares (motor parts), say. Similar to term to NPR (Non-Production Related) goods.
 
MRP
Materials Requirements Planning -works out what to buy and make from what you need (sold or plan to sell). MRP basically balances supply and demand based on, in some cases, quite complex rules. A development from the days of Bills Of Material Processors (BOMP). The definition of MRP was made in the 1960's by Orlicky. 
 
MRP only looks at material constraints, it does not look at capacity. Traditionally, this was done as a separate exercise through tools such as Rough Cut Capacity Planning (RCCP) and Capacity Requirements Planning (CRP) down to Finite Capacity Scheduling (FCS) systems.
 
MRP II
(pronounced 'MRP two') Manufacturing Resource Planning - same as MRP but with Financials, Sales and Purchasing and some Manufacturing around the outside. Also defined as closed loop MRP. It was with the development of MRP II that whole business processes could be linked into a single integrated business system.
 
MSCONS
Metered Services Consumption Report - EDIFACT message category used to transfer consumption data
 
MSDS
Manufacturing Safety Data Sheets - descriptive sheets of potentially hazardous substances stored or used in the workplace.
 
MSS
Management Support System
 
MTBF
Mean Time Between Failures (Thanks to Stephen Butler)
 
MTD
Make To Demand - related to Produce To Demand - demand is usually some combination of forecast, order or plan (MPS).
 
MTF
Make To Forecast - a more sophisticated combination method sitting somewhere between MTS and MTO. Usually associated with manufacturing environments where the sales order cycle time is faster than the production time but where an intermediate stocking point is used to keep part finished goods. A sales forecast can be used to predict the level of stocks at the intermediate point. Usually, some form of forecast consumption mechanism is used so that real sales orders eat up the forecast.
 
MTO
Make To Order - a product is only made when an order is received. Usually low volume engineered goods. For many companies MTO is seen as the holy grail of manufacturing strategy; a scenario where there is minimal stock and cost only occurs when a sales order is received. In reality, a combination of strategies focusing on the particular process, product and market demands is usually best.
 
MTS
Make To Stock - products are made and put into store according to safety stock or re-order point calculations. Usually where the sales order cycle time is faster than the production or assembly lead time. A MTS environment could be simply controlled by reorder points.
 
MTTR
Mean Time To Repair (Thanks to Srinivas Rao)
 
MU
Merchandisable Unit - a grocery display unit on wheels that can be stacked, racked and rolled to position in the store.