AC Nielsen and OLAP analysis approach

AC Nielsen the most popular global data provider. They providing: marketing research, competitors info, distribution channel comparison etc.
The basis is OLAP metrics. To create of generate every OLAP report you need 4 constituting:

1. Period. In what period of time. Data "from" "to". If this field is blank, period = all possible data.
2. Product. What are you selling. It can be: brand, SKU, category. Blank = all types of products.
3. Placement. Where are you selling. Channel, region, area, country. Blank = everywhere.
4. Measurement. Sales/revenue units. It can be: pcs, value, volume. Can't be blank.

Hope you found this info useful.
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