Modeling: how to place Material Grp in Material Master TABLE instead of DIM

Hi,
I just completed a review of the "...Modeling with BI" document and I will appreciate some clarification on the following:
Some key points leading to question:
--"..In order to cover all requirements, master tables in a BI Data model are NOT linked directly to cube .."
e.g. While Material Number is in the Material Dimension; Material Type and Material Group are outside the Star Schema (page 14) i.e. in the Material Master, Material Text, Material Hierarchy TABLES.
--".. translation tables called SID tables are used in the BI data model to link the master tables of the BI data model to cubes" (page 16)
--So, the discussion goes on to point to the different LOCATIONS that a dependent attribute (which are not in 1:N relationships) of a characteristic such as Material Group may be located:
in the
i) Material Dimension table or
ii) Material Master table or
iii) Material Hierarchy table or
iv) combination of i/ii/iii
My question:
When building a cube, I know how to add Material Group to the same dimension as in case of i.
How do I add Material Group in the cube, in such as way that it is ii?
If I created a separated InfoObject, Material Group, it will not meet ii, since it will not be part of the Cube in question.
Can you help me with how to make the LOCATION for Material Group as ii and iii in this example?
i.e. to make Material Group as part of the model but not added to the Material Dimention table but to "Material Master table"
i.e. I am trying to get this line well:
--".. translation tables called SID tables are used in the BI data model to link the master tables of the BI data model to cubes"
Thanks

Hi Amanda.........
I am not getting ur question properly...........but I will try to explain u .......
translation tables called SID tables are used in the BI data model to link the master tables of the BI data model to cubes.......
Do u know.........what is Extended star schema.............it is a purely that concept..........
Look.......Infocube will never store Master data...........Master data will be stored in Infoobject...............
Now look...........if u make a Infoobject Master data enable.........then it will be connected to Four Master data table.......
Attribute Table
Text Table
SID table
Hierarchy table.........
Different Master tables are........
/BIC/M -- View of Master data Tables
/BIC/P -- Master data Table, Time Independent attributes
/BIC/Q -- Master data Table, Time Dependent attributes
/BIC/X -- SID Table, Time Independent
/BIC/Y -- SID Tabel, Time Dependent
/BIC/T -- Text Table
/BIC/H -- Heirarchy Table
/BIC/K -- Heirarchy SID Table
When u r creating the Infoobject........in the Masterdata/text tab...........if u check the box With Master data.........the characteristic may have attributes........... In this case the system generates a P table for this characteristic.............. This table contains the key of the characteristic and any attributes that might exist.........
Again if u check the With Text...........then it will hav text table..............
For Hierarchy in the Hierarchy tab page..u hav to select with hierarchy.................
Now while activating the Master data SID gets generated..........this is stored in SID table.........SID table contains the Key field of the Attribute table and SID............suppose material...........then SID table will contain Material number and SID value........
Now the DIM table of an infocube contains..........SID and DIM.............so DIM tables r connected to the Master data table with this SID.......Again in turn SID tables are conneected to the Master data table.........
So cube will access this Master data table with the help of SID..........ie.......ID tables are used in the BI data model to link the master tables of the BI data model to cubes
Check this.........
http://sapbwneelam.blogspot.com/2007/10/extended-star-schema.html
Regards,
Debjani......

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