Just one more anecdote
Date: 25 Jul 2005 19:24:48 -0700
Message-ID: <1122344688.525517.39350_at_f14g2000cwb.googlegroups.com>
I'm sure there are numerous factors playing into the fact that the system touted in this MS Word document
http://www.microsoft.com/resources/casestudies/ShowFile.asp?FileResourceID=1611
has been discontinued and written off to the tune of $67 million in s/w
development as seen at
http://biz.yahoo.com/prnews/050721/clth018.html?.v=16
This is yet another instance where a legacy system written with a PICK (in this case), MUMPS, IMS, or other pre-relational database product didn't successfully make the jump to a SQL-RDBMS.
It is very likely that the conceptual data model and surely the subsequent logical data model from which the original system was developed would not play to the strengths of the SQL-DBMS. As much as we might want to think otherwise, even the design of a conceptual data model is influenced by the designer's knowledge of the target dbms. A redesign of the data model for a SQL-DBMS is likely to both bump features and increase complexity -- a harsh one-two punch.
My conjecture is that downgrading, I mean moving, from a graph data model to a relational data model and from a PICK dbms to the SQL-DBMS were significant factors in this project failure. I could be wrong, of course.
smiles. --dawn Received on Tue Jul 26 2005 - 04:24:48 CEST