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From: marcs@slc.com (Marc San Soucie)
Newsgroups: comp.object,comp.databases
Subject: Re: Schema/Type Evolution in Traditional and O-O DBMSs
Message-ID: <1991May22.212157.2415@slc.com>
Date: 22 May 91 21:21:57 GMT
References: <CLAMEN.91May5174756@BYRON.SP.CS.CMU.EDU> <CLAMEN.91May21173207@BYRON.SP.CS.CMU.EDU>
Organization: Servio Corporation
Lines: 33

Stewart M. Clamen writes:
>
> In article <CLAMEN.91May5174756@BYRON.SP.CS.CMU.EDU> I made the
> following request:
>
>    I am doing research in the area of type evolution in databases
>    (object-oriented databases in particular) and wish to learn a bit more
>    about how existing systems deal with the problem.
>
> I have so far, received relevant information now on the following
> systems:
>
> Research Systems		Commercial Systems
> ----------------		-----------------
> ORION				Symbolics' Statice
> IRIS				Versant
> GemStone			Object Design
> Encore			Objectivity
> COOL/COCOON			ObjectStore
> Exodus			Ontos (formerly VBase)
> Machiavelli			NMP-CAD's Base/OPEN
> ConceptBase			PICK
> AVANCE			Persistent Data Systems' IDL products

				GemStone

Please be aware that GemStone is in fact a commercial product, not a research
product, and has been a commercial product since 1987.

    Marc San Soucie
    Servio Corporation
    Beaverton, Oregon
    marcs@slc.com