Product BOM for Dimensional Model

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Product BOM for Dimensional Model

Post  JSpehar on Tue Mar 17, 2009 1:13 pm

I am curious to learn the best method for modeling and building into my existing dimensional star schema data mart, the ability to house Product BOM (Bill Of Material) dimensional tables for providing reporting and analysis capabilities for Products. Does anyone have experience with using Product BOM dimensional tables within a star / snow flake schema?

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Re: Product BOM for Dimensional Model

Post  BoxesAndLines on Wed Mar 18, 2009 9:25 am

If you figure this out, let me know!
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Re: Product BOM for Dimensional Model

Post  ngalemmo on Tue May 19, 2009 2:11 pm

Yes... its a hierarchy. Build an exploded hierarchy bridge table and include quantities, UOM, and, maybe, cost as measures. The item dimension is not changed.

The difference between a BOM and a typical hierarchy is that, after explosion, a component may appear multiple times for a given parent (the explosion results in every possible parent-child relationship at any level). If you are not concerned with levels, that is to say all you need is a table that tells you for a given parent, here are the components and their quantities, you can summarize the table by parent/component before using it and don't include level information about the child.
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Re: Product BOM for Dimensional Model

Post  warrent on Wed Jun 10, 2009 3:38 pm

See the following topic for additional discussions on the product hierarchy, a simple example, and links to additional information:
Product bundles
--Warren
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