janko.mivsek at eranova.si
Mon Feb 4 11:25:45 UTC 2008
Vladimir Pogorelenko wrote:
> My congratulations!
>> - 10 years of continuously running Aida/Web application: Gas Billing
>> System (GBS) for our national gas operator, surviving big business
>> changes like country tax system change to VAT, deregulation of EU
>> energy market, split of company to gas trader and gas transport
>> operator, and recently currency change to Euro. It is running on
>> VisualWorks and Gemstone/S;
> Interesting expirience. Very good for promotion.
> Could you also tell how much objects in it and how big size it is. Does
> it has a long historic data?
Last time I asked them they had about 2 GB big database, while I don't
know the number of objects. There is a historical data in time series,
that is a hourly flow on pipeline measure points. But the point is not
much on quantity of data as on complexity of billing rules (tariff
system) and changes of that rules through the time. History of the rules
and corresponding billing parameters is so exact that the system is able
to recalculate any bill in the past exactly as when it was issued, even
back in 1998.
> I also just looked at the performance comparison with Seaside. Looks
> like AIDA performs twice faster than Seaside.
> Then it's interesting how AIDA/Web and Seaside compares in development
> time efforts and simplicity, maintainabillity.
Nicolas answered you better than could I because of his experience with
Smalltalk Web Application Server
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