MESSAGE
DATE | 2014-11-26 |
FROM | Ruben Safir
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SUBJECT | Subject: [LIU Comp Sci] More problems with modeling and normalization
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From owner-learn-outgoing-at-mrbrklyn.com Wed Nov 26 02:04:58 2014 Return-Path: X-Original-To: archive-at-mrbrklyn.com Delivered-To: archive-at-mrbrklyn.com Received: by mrbrklyn.com (Postfix) id C44A5161143; Wed, 26 Nov 2014 02:04:58 -0500 (EST) Delivered-To: learn-outgoing-at-mrbrklyn.com Received: by mrbrklyn.com (Postfix, from userid 28) id AD5CD161157; Wed, 26 Nov 2014 02:04:58 -0500 (EST) Delivered-To: learn-at-nylxs.com Received: from mailbackend.panix.com (mailbackend.panix.com [166.84.1.89]) by mrbrklyn.com (Postfix) with ESMTP id D9407161143 for ; Wed, 26 Nov 2014 02:04:57 -0500 (EST) Received: from [10.0.0.42] (unknown [96.57.23.82]) by mailbackend.panix.com (Postfix) with ESMTP id 39B2A1345B; Wed, 26 Nov 2014 02:04:57 -0500 (EST) Message-ID: <54757BE7.5020204-at-panix.com> Date: Wed, 26 Nov 2014 02:06:15 -0500 From: Ruben Safir User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.1.0 MIME-Version: 1.0 To: ping-Tsai Chung , Samir Iabbassen , learn-at-nylxs.com, ping-Tsai Chung Subject: [LIU Comp Sci] More problems with modeling and normalization References: <547578D7.1020604-at-panix.com> <54757AED.8070802-at-panix.com> In-Reply-To: <54757AED.8070802-at-panix.com> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit Sender: owner-learn-at-mrbrklyn.com Precedence: bulk Reply-To: learn-at-mrbrklyn.com
http://www.bkent.net/Doc/darxrp.htm
going back to 1978
What they’ve said about /Data and Reality.../
An excellent, philosophical discussion of the problems inherent in describing the real world. There is nothing really similar to this work. I think that all data base researchers should read this document. It might also be assigned as supplementary reading in general graduate and undergraduate courses in data base systems. /- Mike Senko (1978)/
I expect the book to be one of the most frequently quoted ones for the next few years. It is unique in being an almost exhaustive, condensed rendition of the typical problems encountered. The most striking strong point is its penetration into major data base technology headaches… Many well chosen examples and the lucid style make it easy to read. /-Reiner Durcholz (1978)/
…highly recommended and even required reading for all DP people… /- G.M. Nijssen (1978)/
Kent has produced a rather remarkable and highly readable short work… the most important things he has to say are philosophical and go right to the heart of the key concepts that must be understood if a system is to be “successful” (whatever that may mean!)…This is a serious book but not a heavy one. Kent writes easily and without hiding behind the semantics of the data base specialists. The ideas are presented in a straightforward manner with no attempt to preach. /-Datamation, March 1979/
This excellent study of the problems inherent in describing the real world is unique in (1) being an almost exhaustive, condensed rendition of the typical problems encountered, (2) not offering an own solution as remedy for all evils, and (3) penetrating into the mists of conceptual ambiguity… This book is of important value to all those in the field of data bases and information systems who are concerned with developing a deeper understanding of this matter. It is of equal importance to the systems analyst, to the data base designer, and to the database system designer. /-Current Engineering Practice, July 1979/
Data and Reality illustrates extensively the pitfalls of any simplistic attempts to capture reality as data in the sense of today’s database systems. The approach taken by the author is one which very logically and carefully delineates the facets of reality being represented in an information system, and also describes the data processing models used in such systems. The linguistic, semantic, and philosophical problems of describing reality are comprehensively examined… The depth of discussion of these concepts, as they impact on information systems, is not likely to be found elsewhere.… the value of this book resides in its critical, probing approach to the difficulties of modeling reality in typical information systems… it is very well written and should prove both enjoyable and enlightening to a careful reader. /-ACM Computing Reviews, August 1980/
By page eight one has been exposed to an incredible number of philosophical ideas, all cast as concrete data-representation problems… this is basically a book that poses problems and exposes contradictions… A very stimulating read. / -Quantitative Sociology Newsletter, Spring 1981/
Kent attacks the pseudo-exactness of existing data models in a very neat and clear (and often humorous) manner… This book is for everyone who thinks about or works on data files and who wants to understand the reasons for his disenchantment. / -European Journal of Operations Research, November 1981/
I am using Data and Reality as research material for my current project. It is on my desk right now. /-Joe Celko, 1998/
The book is still quoted quite often and has a message even - or especially - for today's jaded information scientists. /-Prof. Dr. Robert Meersman, Vrije Universiteit Brussel (1998)/
Your book focuses attention on many issues that are still, embarrassingly, not being dealt with in our formalized information systems. It provides an important reference point not only in identifying these problems, but in pointing out origins and the long-standing practice of simply ignoring them. When I reopened your book… I found lots of issues that seem as fresh as ever. /-Roger Burkhart, John Deere (1998)/
A small number of computing and information management books are of foundational nature, not oriented towards a particular technology, methodology or tool. Data and Reality is such a book. The concepts and approach described there are as valid now as they were in 1978, and are still often ignored resulting in systems that are not what we want them to be. Doing better than that requires Data and Reality to be an essential component of our intellectual foundation. /-Haim Kilov, Genesis Development Corporation (1999)/
I remember my first exposure to the work of Edward Tufte. The richness of detail that could be presented simply was almost a physical shock. Were it not for Bill Kent I might have forgotten that the data represented by that richness was only a representation of reality, and not the reality itself. In a world which reinvents the Perfect Semantic Representation Language to End All Semantic Representation Languages every ten years or so, it is a pleasure to have Bill's calming influence in print in the form of Data and Reality. /-Richard Mark Soley, Ph.D., Chairman and CEO, Object Management Group, Inc. (1999/)
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