Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!hellgate.utah.edu!caen!sol.ctr.columbia.edu!emory!hubcap!ncrcae!ncr-sd!iss-rb!mtunion!davem From: davem@mtunion.SanDiego.NCR.COM (Dave Miller) Newsgroups: comp.databases Subject: Re: Long (Design) Transactions Keywords: What-if analyses, shadow files Message-ID: <1991Feb20.153147.13054@SanDiego.NCR.COM> Date: 20 Feb 91 15:31:47 GMT References: <2151@fornax.UUCP> Sender: @SanDiego.NCR.COM Reply-To: davem@mtunion.SanDiego.NCR.COM (Dave Miller) Organization: NCR Corporation, Rancho Bernardo Lines: 22 In article <2151@fornax.UUCP> gupta@fornax.UUCP (Ranabir Gupta) writes: >I'm looking at a planning/design application where lots of >'what-if' (hypothetical) design-related planning is involved >using information about 1000+ objects. What complicates matters >is that other planners will also be looking at the data (and >wanting to modify it) and the world which the data models will >also be changing and wanting to update the data to reflect >the changes. > [more description deleted] > >Question is: >Are there any systems around which target this sort of application ? >Are there any research papers that do ? >Partial addressing of this question ? > MCC - Microelectronics and Computer Technology Corporation - is currently researching new transaction techniques that relax the ACID properties as part of the Carnot project. NCR is a sponser of the project. I don't know what is / is not confidential so I had better shut up now. Dave Miller Brought to you by Super Global Mega Corp .com