Cumulative key figure and non cumulative key figure

Question

Hi BW Expertz
Could any one give me the clarification about cumulative and non cumulative key figures .Why we go for cumulative key figure and non cumulative key figure.If any docs could u just mail to the following [email protected]
Thanx In advance
Best regards
sankar prasad

Answer 1

Cumulative values are those key figures (KF) that are cumulated using all characteristics, thus also using time.
Ex: Sales revenue, Quantity....
Non-cumulative values are those key figures that are measured in relation to a period in time; they cannot be meaningfully cumulated over time. Non-cumulative values are summarized over time using so called exception aggregation.
Ex: Number of employees, Inventory, Stock prices, Account balance,.....
AGGREGATION TAB
Non cumulatives are evaluated by non-cummulative values. Non-cummulative values are special key figures that are different from other key figures (cummulative values) in data transfers and saving as well as in aggregational behaviour. These are measured in relation to a period in time; that is to say, they cannot be meaningfully cumulated over time. Non-cumulative value are summaraized over-time using exception aggregation.
Non-cumulative values such as 'number of employess' are cumulated using characteristics such as 'cost center'. It does not make any sense, however, to cumulate the number of employees using different periods. The result at the end of any particular period would be the sum total of number of employees for each posting during the period. This would of course be wrong.
Instead, the aggregation of the KF can be defined as exception aggregation wherein an additional references characteristics is utilized to tell BW which value to use during the period, in this case, 0CALMONTH is used, in the above example, to indicate that only the last value of 0HEADCOUNT, updated by costcenter, is to be taken for any calender year and month.
Cummulative vs Non-Cumulatives
The purpose of non-cumulatives is to optimize the data transfer in BW, the data retention and the database access. The data transfer from OLTP to BW is minimized and only the meaningful data is saved and processed.
It is recommended that you use non-cumulative values for areas that dont change frequently such as warehouse stock or number of employees.
Non-cumulatives are modeled in BW using a non-cumulative value with the fields belonging to it for storing the non-cumulative or for inflows or outflows.
Non-cumulative values are stored with special KF that differ in terms of data transfers and aggregational behaviour.
Features of NON-Cumulative Values Transfering and Saving Data:
- NC values are mapped uisng one KF for NC changes or two KF for inflows and outflows.
-NC are transferred in an initialization run and the change runs that follow (initialization can also be omitted here)
- A non-cumulative value always has a time-related exception aggegation.
http://help.sap.com/saphelp_nw04/helpdata/en/80/1a62dee07211d2acb80000e829fbfe/frameset.htm
http://help.sap.com/saphelp_nw04/helpdata/en/82/f2dc37f0f12313e10000009b38f8cf/content.htm
http://help.sap.com/saphelp_bw31/helpdata/en/82/f2dc37f0f12313e10000009b38f8cf/content.htm
http://help.sap.com/saphelp_erp2004/helpdata/en/d2/e0173f5ff48443e10000000a114084/content.htm
with Example
Re: Non-Cumulative keyfigure example
Re: Types of non-cumulative keyfigures
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