Best practice for calc measures

Hi,
I read in one of the olap blog from experts which says that best practice for creating the calc measures is to have them in a seperate cube.
My question is that suppose I have two cubes in a AW of different dimensionality. Both the cubes has some calc measures to be created.
So can I create one more cube(dedicated to calc measures) considering all the available dimensions in the AW and create the calc measures for both the cube which has different dimensionality?
If I cannot do this then this means that if I have two cubes having different dimensionality then I would need two more cubes to create the calc measures for them? if yes then what would be the size implecation of the AW?
Thanks in advance.
Thanks
Brijesh

"Can I create one more cube(dedicated to calc measures) considering all the available dimensions in the AW and create the calc measures for both the cube which has different dimensionality?"
Yes, you can.
This is a pretty common thing to do. Store your base measures efficiently and then use calculated measures with the 'superset' dimensionality to bring different shaped measures together for the purposes of calculations or simply to get them all in one 'hypercube' to simplify access by SQL query tools and apps.
Kevin

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