Why this blog?

Finding information from Oracle/Hyperion can be difficult as you search the thousands of pages of documentation. So I'm creating this blog with all of my tables and matrices for the Oracle Hyperion products. Questions like - How does Smart View compare to the Excel add-in? When should I use Financial Reporting or Web Analysis? I thought I would share this information with you in the simple format of tables and maybe a few bullet points. So no lengthy paragraphs on this blog... but hopefully some helpful Oracle Hyperion information.

Tuesday, December 2, 2008

ASO vs. BSO?

A common question that I get - when should I implement an ASO database vs. a BSO database? First, let's view some similarities between the two...

BSO

ASO

Build dimensions

Y

Y

Load data

Y

Y

Write back to level 0

Y

Y

Retrieve data

Y

Y

Partitioning / Sharing Data

Y

Y (target or source in 11x)



Key differences ...

BSO

ASO

Unlimited dimensions and members

N

Y

Write back to any level

Y

N

Advanced calculation engine

Y

N

Calc scripts vs. MDX formulas

Y

N

Partitioning / Sharing Data

Y

Limited – pre-11x



In short, use BSO when you need to write back to any level or perform complex calculations. Use ASO for the larger, aggregation focused databases with many dimensions and many members.

In the 11 world where I can now make an ASO database the source of a partition, I can take advantage of the BSO strengths (write back to any level, powerful calculation engine) and then source this information to a consolidated ASO database that maybe has the volumes of detail from other sources. (Note - the new Hyperion Profitability and Cost Management solution uses this model: BSO for allocation calcs and loads to an ASO cube for reporting).

Check out the DBAG for detailed comparison tables on ASO vs. BSO.

8 comments:

jayanth said...

Hi

Can I have ASO and BSO Cubes on one server?

Regards
Jayanth

Dermott Beverley said...

@jayanth - yes you can. The server specifications are the limitaiton here.

punisher said...

I am not agree with the UNLIMITED DIMENSION in ASO cubes. That is not true in practice...

punisher said...

I am not agree with the UNLIMIED DIMENSION definition for ASO cubes. That is not true in practice...

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