What is the difference (& use) between CBP & MRP & FBP

Question

Dear Experts,
Can anyone please tell me what is the difference ( & uses ) between Consumption Based Planning & Material Requirement Planning & Forecast Based Planning?
how are these linked to each other?
Instead of sending Big Documents,Please tell me in few lines in a Lay mans Language.
I read these topics in Martin Murray Book (its the Bible of MM acc. to me) but still did not understand it.
Can anyone please  explain me.....
Kind Regards
Sajid

Answer 1

Dear Sajid,
Read This link Must help u to get all details u required
http://help.sap.com/saphelp_45b/helpdata/en/7d/c2821c454011d182b40000e829fbfe/frameset.htm
All are Used In Material Requirement Planning(MRP)
Consumtion base Planning :-   Consumption-based planning procedures are straight forward materials planning procedures with which you can achieve set targets with relatively little effort. Therefore, these planning procedures are used in areas without in-house production and/or in production plants for planning both B- and C-parts and operating supplies.
The type of order proposal which is automatically generated during materials planning depends on the procurement type of the material. For materials that are produced internally, a planned order is always created. For materials procured externally, the MRP controller has the choice between creating a planned order or a purchase requisition. If he decides to create a planned order, he must then convert it into a purchase requisition and make it available for the purchasing department.
in MRP there are three Type
1) Reorder Point Planning
     A) VB - Manual Reorder
     B) VM - Automatic
     C) VV - Forecast
2) Forecast Based Planning :- Material planning is based on forecasted requirements. This is preferred when the future requirements might not be the same as the past consumption, but to forecast, the past values are considered.
Like reorder point planning, forecast-based planning operates using historical values and forecast values as future requirements are determined via the integrated forecasting program. However, in contrast to reorder point planning, these values then form the basis of the planning run in forecast-based planning.
The forecast, which calculates future requirements using historical data, is carried out at regular intervals. This offers the advantage that requirements, which are automatically determined, are continually adapted to suit current consumption needs. If, during the current period, material has already been withdrawn from stock, then the forecast requirement is reduced by the quantity of material that was withdrawn. This means that the quantity of the forecast requirement that has already been used is not included in the planning run again.
3) Time Phase Planning :-  If a vendor always delivers a material on a particular day of the week, it makes sense to plan this material according to the same cycle in which it is delivered, but displaced by the delivery time. This is possible with the time-phased planning procedure.
If a particular material is to be planned using this procedure, you must set the MRP type for time-phased planning and you must enter the planning cycle in the material master record. You enter the planning cycle in the form of a planning calendar in the Planning cycle field. You must also define a planned delivery time and the Lot-for-lot order quantity as the lot-size key.
Regards,
Pardeep Malik
Edited by: Pardeep  Malik on Mar 20, 2009 11:58 AM
Edited by: Pardeep  Malik on Mar 20, 2009 12:10 PM