How to handle Forecasting when modeling in BW?

Hello Experts,
can you give me hints on how to handle forecasting during modeling?
Do you create a whole new Cube to load actual fugures and another for the forecasted figures? Or, there is another way. This pertains to HR environment. Any samples any where to read on?
Thanks.

Hi,
I am new to BPS. Trying to implement forecasting. Can u let me know how i should implement the forecast planning function when using a single cube scenario.
can u give me a small example to make it clearer or point me to an example link where they actually tell you how to implement the function.
I am having a lot of difficulty expressing the exact issue, but i'll still try explaining. How can i in the forecasting function use several data columns in the layout as reference data columns and copy the result of the forecast to new data columns in the same layout. I have defined each data column as a key figure in the cube.
I am really having a lot of problem. If u have some contact number please let me know so that i can call you from my office now.
Regards,
Really Desparate for Help.
Regards,
Salman

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Follow-up 1: Hmm! An issue ... u0093How to handle Forecasting when modeling

Any comment on my Summary:
My understanding is that, in dealing with forecasting during modeling
a) One approach will be to create a new Cube, infobjects for Forecast data in addition to the cube for the actual data. That makes it 2 Cubes.
Advantage:
if you have huge amount of data having several cubes may serve as a kind of physical partitioning - improved performance.
Disadvantage
To compare the data in the actual and forecast, the two Cubes will have to be united with a Multiprovider; more DB space because of redundant storage of characteristics in the similar cubes.
b ) a Second solution will be to keep to a single Cube, i.e combine the actual and forecast, and differentiate the actual and forecast with a new characteristic (like 0Version) and set different values for actual, plan, forecasted data.
(By the way, will we have to create a new dimension for this additional characteristic)?
1
Not very sure of this message So Use the logical partition by Multi provider concept -- By "multi provider", is it referring to b) (above) or on a different subject and referring to partitioning the single cube in a)

Hi,
I am new to BPS. Trying to implement forecasting. Can u let me know how i should implement the forecast planning function when using a single cube scenario.
can u give me a small example to make it clearer or point me to an example link where they actually tell you how to implement the function.
I am having a lot of difficulty expressing the exact issue I am having but still i'll try to explain. How can i in the forecasting function use several data columns in the layout as reference data columns and copy the result of the forecast to new data columns in the same layout. I have defined each data column as a key figure in the cube.
I am really having a lot of problem. If u have some contact number please let me know so that i can call you from my office now.
Regards,
Really Desparate for Help.
Regards,
Salman

Follow-up 2: Hmm! An issue ... u0093How to handle Forecasting when modeling

Any comment on my Summary:
My understanding is that, in dealing with forecasting during modeling
a) One approach will be to create a new Cube, infobjects for Forecast data in addition to the cube for the actual data. That makes it 2 Cubes.
Advantage:
if you have huge amount of data having several cubes may serve as a kind of physical partitioning - improved performance.
Disadvantage
To compare the data in the actual and forecast, the two Cubes will have to be united with a Multiprovider; more DB space because of redundant storage of characteristics in the similar cubes.
b ) a Second solution will be to keep to a single Cube, i.e combine the actual and forecast, and differentiate the actual and forecast with a new characteristic (like 0Version) and set different values for actual, plan, forecasted data.
(By the way, will we have to create a new dimension for this additional characteristic)?
2
Also, the message And when comparing to query execution time taken by the single cube, the above disadvantage is countless. Can you clarify this?

Hi,
Its better to use two separate cubes, and ur assumption is right
if you have huge amount of data having several cubes may serve as a kind of physical partitioning - improved performance.
And more over if u need both forecast data and actual data then combine with the multiprovider for a query.
Regards-
Siddhu

Follow-up 3: Hmm! An issue ... u0093How to handle Forecasting when modeling

Any comment on my Summary:
My understanding is that, in dealing with forecasting during modeling
a) One approach will be to create a new Cube, infobjects for Forecast data in addition to the cube for the actual data. That makes it 2 Cubes.
Advantage:
if you have huge amount of data having several cubes may serve as a kind of physical partitioning - improved performance.
Disadvantage
To compare the data in the actual and forecast, the two Cubes will have to be united with a Multiprovider; more DB space because of redundant storage of characteristics in the similar cubes.
b ) a Second solution will be to keep to a single Cube, i.e combine the actual and forecast, and differentiate the actual and forecast with a new characteristic (like 0Version) and set different values for actual, plan, forecasted data.
(By the way, will we have to create a new dimension for this additional characteristic)?
3
Also on this message ...in other words, if you have a lot of data, go for a multiprovider, otherwise you can manage only one provider with a char that aims to separate different views...
Does go for a multiprovider mean create 2 Cubes and use multiprovider to unite them?

Hi,
Its better to use two separate cubes, and ur assumption is right
if you have huge amount of data having several cubes may serve as a kind of physical partitioning - improved performance.
And more over if u need both forecast data and actual data then combine with the multiprovider for a query.
Regards-
Siddhu

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How to handle Forecasting when modeling in BW?

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