Best Practice For Cube Design

All,
First post here and was wondering if anyone out there has a best practice for cube design or optimisation. Currently have 7 Cubes that have been populated for the last 6 months and am now looking at ways of speeding up their population.
Are there any hard and fast rules about dimensions?
Should they be kept to a percentage of the fact table?
When should line item dimensions be used?
Regards
Gary Boyle

Hi Gary,
Ideally the DIM tables should be 20% of the fact table and preferably less. You can check the size ratios in RSRV using the Database tables test > Database info about InfoProvider tables. Line items dimensions should be employed where the char has a large number of unique values (like 0MATERIAL, or 0CUSTOMER), so that anothe DIM ID is not created, but the SID values are used directly in the Fact Table.
See these for more:
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/media/uuid/10b589ad-0701-0010-0299-e5c282b7aaad
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/08f1b622-0c01-0010-618c-cb41e12c72be
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/6ce7b0a4-0b01-0010-52ac-a6e813c35a84
Hope this helps...

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