What is meant by flat aggregates?

hi,
Can any one explain what is meant by flat aggregates with an example.
thanxs in advance
hari

hai hari,
https://www.sdn.sap.com/irj/sdn/profile?userid=2297751
Flat aggregates
FLAT AGGREGATES
aggregate
regards
KP
asign points if helpfull

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    Nice Quiz. Keep this running Dinesh, the Derek O'Brien of SDN
    Dinesh Raju wrote:
    Thanks!
    >
    > Here the correct answer:
    >
    > What is flat aggregate?
    >
    > If 14 or fewer characteristics are included in the aggregate, the BI system does not create real dimensions; a line item dimension is created instead. In the case of a line item dimension, the dimension table is eliminated and the Characteristic InfoObjects SID is instead written directly to the fact table. When this happens, the aggregates are called flat aggregates.
    >
    > If 15 or more characteristics are included in an aggregate, the BI system may proceed in two ways:
    >
    > 1.• If two or more characteristics come from one dimension in the InfoCube, the DIM ID of the InfoCube is stored as a key in the fact table.
    > •2. If only one characteristic comes from one dimension in the InfoCube, the SID is stored as a key in the fact table. A line-item dimension is used here.
    >
    > BR
    > Dinesh R

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    Hi,
    What is the concept of flat aggregates and its relationship with line item/high cardinality dimensions...

    hi
    If you create an Aggregate with more than 16 characteristics, then we call that aggregate as FLAT Aggregate
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    If an aggregate has less than 15 components, BW 3.x puts each component automatically into a separate dimension that will be marked as “line item” (except package and unit dimension); these aggregates are called flat aggregates.
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    simply said flat aggregate is when each characteristic is put into separate dimension, these dimensions are marked as 'line item' dimension, in other word every dimension has only one characteristic (except the package and unit dimension).
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    aggregate
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    line item and high cardinality
    http://help.sap.com/saphelp_nw04/helpdata/en/a7/d50f395fc8cb7fe10000000a11402f/frameset.htm

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