[rules-users] Location of ScoreCard Spreadsheet File?

[Davide Sottara]

Let me tell you the story of scorecards, to help you understand what is going
on.
Scorecards are one of the possible predictive models covered by the PMML
standard - which also supports other models such as neural networks and
decision trees. However, PMML is an XML interchange format
rather than a user-friendly authoring format. 
So, we decided to adopt a number of stages for representation and
evaluation: 

- XLS (or a guvnor-based UI) for authoring
- PMML for internal representation (or to import scorecards generated with
other tools)
- DRL for execution

So, XLS is converted in PMML; the UI, instead, generates PMML directly. PMML
is always converted in DRL.
This, at least, in the ideal world :)

Scorecards were ready for release way before PMML will be - being much
broader, PMML requires much
more effort. However, being strategical, scorecards could not wait to be
released together with
the rest of PMML. So, scorecards were "split" and released with the main
product: drools-scorecards
is part of drools. drools-pmml, instead, is still being incubated in
drools-chance, which is NOT part of
the official release. What you have found in drools-chance is an example,
once originated in an XLS
but further modified manually for testing purpose, so there is no "source"
XLS anymore. 
Again, notice that the pmml support in drools-chance is more powerful (and
lets you import
PMML directly among other things), but is not currently integrated with the
BRMS and the spreasheet
sources. The two will be merged together again in 6.0, when pmml will become
part of the official release too.

Sorry for the confusion generated by this situation, but feel free to ask
for more clarifications or help

Best regards
Davide







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