Re: Did you use E-R modelling for your database design ?
Date: Wed, 14 Oct 1992 15:37:32 GMT
Message-ID: <1992Oct14.153732.17622_at_homebase.vistachrome.com>
kortikar_at_mipos2.intel.com (Aniruddha Kortikar) writes:
>Specifically I would be interested in
>1. Did you use E-R modelling for database design project
Yes, many projects.
>2. How big was the result (Approx no of tables 20,50,150 etc)
Some as small as 10, most end up being around 50, and three are at 200+ tables, not including validation lookup tables. Total rows for the 250 table model is around 14 million not including a 28 million "lookup" table. :>
>3. Did you use any software for designing the database. (to generate schema)
Depending on the task we used one of:
Mac Flow 3.7.3 -- used to partition and have pretty pictures on paper
it has no E-R smarts within it.
TurboCase 2.1 and 3.0 -- another mac product supports
a number of modeling conventions and data dictionary support. No
importation to Oracle directly though.
Oracle CASE Dictionary 5.0 -- easy to use once you get used to it. Highly capable and generates all DDL as well as imports directly into Generators for forms and reports.
>4. Are you aware of any company that has a business of database design ?
> (NOT programming etc but exclusively information modelling and giving
> you generated schema and all the documentation.)
> I do not want to know the products, or product development company
> but the consulting company which uses some of these products and give
> you the design.
>5. did you really benefit from such design efforts ?
>regards,
>Aniruddha Kortikar (kortikar_at_mipos2.intel.com)
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Received on Wed Oct 14 1992 - 16:37:32 CET