What is the proper role of OLAP meta-data?

One basic feature continues to confuse me with regards to the Oracle OLAP option. What is the proper role and/or purpose of creating OLAP meta-data? Since you can now use the Analytic Workspace Manager to create multi-dimensional OLAP objects, doesn't that now create all the neccesary meta-data in the Analytic Workspace itself?
We have created a fully functioning prototype system with both multi-dimensional cubes as well as relational tables using both Oracle Discoverer for OLAP and Oracle BI Discoverer to view that data. And we have done so without EVER taking the explicit steps to create OLAP meta-data, i.e. using the CWM or CWM2 packages. Am I missing something? Is it still neccesary to use these packages and if so what are they for? Are there any Oracle OLAP experts that would care to comment?

Most implementations of the OLAP option are analytic workspaces (MOLAP). The usual motivators towards MOLAP are performance of builds/aggregations and query and additional calculation capabilities offered by the multidimensional engine. Also, the administrative infrastructure is better with MOLAP (because that's what most users use).
Sometimes customers want to do a ROLAP implementation because they're more familiar with tables and feel comfortable about managing security, high availability and disaster recovering. Also, some customer want to access the data with SQL based tools. But, remember with Oracle OLAP the data is all in the database (safe, secure, same management practices, RAC/Grid enabled, etc) and you can query it with SQL. Those are some of the things that make Oracle OLAP so terrific as compared to stand alone OLAP servers.
That doesn't necessarily mean that MOLAP is correct for every application, but MOLAP is probably used more than 90% of the time.
If you would like a white paper discussing when to use MOLAP, feel free to send me at email <[email protected]>

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looking into is that the system being developed is
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Department database. The system also reads in
information about people (facial features, height,
weight, etc.) and stores the information in the
database, and then issues new "smartcard".
1. People involved in the project already decided to
use swing for the client tier.
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is a flat file database and this database cannot be
touched. It is a black box for Java developers. The
Defense Department may provide a jar as an outer layer
of this database.
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project?
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project?
Question 3: How to deal with the data problem?
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What is the proper role of OLAP meta-data?

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