If (but not guaranteed) I will start writing down something concrete,
should I wrap it in a new specialpurpose component and commit (or put in
Jira) it asap to get early feedback from the community? If so, which name?
Jacopo
David E. Jones wrote:
Jacopo,
I like the idea of this approach, and it's something I've been thinking
about for a while.
A good next step might be to do a PoC implementation with maybe just one
star schema using a simple-method to do the ETL, and a form widget to
report on the data. In that process we'll probably find some things that
are ugly and could use some tool extensions.
BTW, there are some interesting generic star schemas in the Data Model
Resource Book. There is a sales one with some requirements in the form
of questions on page 370 of volume 1, and a model diagram on page 371.
The data warehouse entities should go into their own entity group, a new
group, with it's own datasource in the OOTB entityengine.xml file. A
good group name might be something like org.ofbiz.olap (as opposed to
oltp which characterizes most of the current entities.
Anyway, yeah this would be cool, and we already have a lot of tools that
would work really well here.
-David
On Feb 16, 2007, at 12:15 AM, Jacopo Cappellato wrote:
Christopher,
still nothing official or concrete, as far as I know.
I know that Chris Howe did some integration tests with OpenI:
http://docs.ofbiz.org/x/0AI
I am seriously considering a different approach; while I'm studying
the book "The Datawarehouse Toolkit"
(http://ofbiz.apache.org/documents.html), I'm trying to draft out a
proposal for the implementation of base datawarehousing features in
OFBiz (a separate set of entities for dimensions, facts and start
schemas; ETL services based on minilang, tools to manage the
dimensions tables and synchronization).
You'll find some of my notes here:
http://docs.ofbiz.org/x/2QI
My goal is this: once we have a set of star schemas (facts and
dimensions) derived from OFBiz entities and based on best practices,
and the tools to manage the data in them, we could integrate a visual
reporting tool to run reports against them (or just use, with some
improvements the form widgets).
It may seem an ambitious plan, but I think that many of the building
blocks to complete it are already in the framework, we'll just have to
improve and fine tune them.
If you are interested in helping with this we could try to create a
work group for this...
Jacopo
Christopher Snow wrote:
Is there any work going on at the moment to build an ofbiz data
warehouse and reporting infrastructure, for example the integration
of the Pentaho toolset?
Many thanks ...
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