Creating dimensions enables to have redudancy of data?

hi all,
Creating dimensions enables to have redudancy of data. can anyone explain why and how redudancy is been created while creating dimensions for an infocube.
can anyone explain me with an scenario?
regds
hari

hi
A dimension is a grouping of characteristics whose content is logically connected.
The customer dimension could, for example, be made up of the customer number, the customer group and the levels of the customer hierarchy.
The sales dimension could contain the characteristics sales person, sales group and sales office.
And number of dimensions in BW is max. 16.
Check http://help.sap.com/saphelp_nw04/helpdata/en/fb/184538650fb10de10000009b38f842/frameset.htm
hope this helps

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Creating dimensions enables to have redudancy of data?

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