Forwarded message from [becker@BREVARD.NET (Shirley A. Becker)] sent originally on Tue, 16 May 2000 09:45:42 -0400: : The contents of the latest issue of: : : Journal of Database Management (JDM) : Official publication of the Information Resources Management : Association : Vol 11#3, July-September, 2000 : Editor: Shirley A. Becker, Florida Institute of Technology : : RESEARCH PAPERS : : Article One : : Using Business Rules Within a Design Process of Active Databases : : Youssef Amghar, Madjid Meziane, André Flory : National Institute of Applied Sciences, France : : Modeling behavior is an important task of the information system : engineering process. This task is especially important when informa- : tion systems are centered on active databases, which allow the : replacement of parts of application programs with active rules. To : relieve programmers from using either traditional or ad hoc techniques : to design active databases, it is necessary to develop new techniques : to model business rules. For that reason, inclusion of rules during : analysis and design stages becomes an actual requirement. In this paper, : we propose a uniform approach to modeling business rules (active rules, : integrity constraints, etc. ). To improve the behavior specification, : we extend the state diagrams that are widely used for dynamic modeling. : This extension is a transformation of state transitions according to rule : semantics. In addition, we outline new functionalities of Computer Aided : System Engineering (CASE) to take into consideration the active : database specificities. In this way, the designer can be assisted to : control, maintain, and reuse a set of rules. : : Article Two: : : Benchmarking OODBs with a Generic Tool : : Jérôme Darmont and Michel Schneider : Université Blaise Pascal Clermont-Ferrand II, France : : We present in this paper a generic object-oriented benchmark (OCB: the : Object Clustering Benchmark) that has been designed to evaluate the : performances of Object-Oriented Databases (OODBs),and more specifically : the performances of clustering policies within OODBs. OCB is generic : because its sample database may be customized to fit any of the databases : introduced by the main existing benchmarks, e.g., OO1 (Object Operation 1) : or OO7. The first version of OCB was purposely clustering-oriented due to : a clustering-oriented workload, but OCB has been thoroughly extended to be : able to suit other purposes. Eventually, OCB’s code is compact and easily : portable. OCB has been validated through two implementations: one within : the O2 OODB and another one within the Texas persistent object store. The : performances of a specific clustering policy called DSTC (Dynamic, Statis- : tical, Tunable Clustering) have also been evaluated with OCB. : : Article Three: : : Performance Evaluation of Parallel S-trees : : Eleni Tousidou, Michael Vassilakopoulos & Yannis Manolopoulos : Aristotle University, Greece : : The S-tree is a dynamic height-balanced tree similar in structure to : B+trees. S-trees store fixed length bit-strings, which are called : signatures. Signatures are used for indexing textbases, relational, : object oriented and extensible databases as well as in data mining. : In this article, methods of designing multi-disk B-trees are adapted : to S-trees and new methods of parallelizing S-trees are developed. : The resulting structures aim at achieving performance gain by accessing : two or more disks simultaneously. In addition, two different searching : techniques that exploit parallel disk accessing are devised. Performance : results of experiments based on the new structures and searching : techniques are also presented and discussed. : : INDUSTRY AND PRACTICE : : Justifying Data Warehousing Investments : : Ram L. Kumar : University of North Carolina-Charlotte, USA : : This article outlines an approach to justifying data warehousing invest- : ments that is based on the concept of options in finance. This approach to : justifying investments is being increasingly recognized as being superior : to traditional methods by finance professionals. : : The Folklore of Normalization : : Robert Buelow : Cap Gemini America, USA : : This article contends that normalization is not as difficult as is generally : supposed,that it should not be performed as is generally understood and that : it is not as important as is generally thought. : : BOOK REVIEW : : Data Warehousing: Architecture and Implementation : By Mark Humphries, Michael W. Hawkins and : Michelle C. Day : Prentice Hall PTR, 1999 : 347 pages; $39.99; ISBN 0-13-080902-0 : http://www.phptr.com : : Review by Wita Wojtkowski, Boise State University, USA : : *************************************************************************** : For full copies of the above articles, check this issue of the Journal of : Database Management in your institution's library. : *************************************************************************** : : CALL FOR PAPERS : : The Journal of Database Management (JDM) is a multidisciplinary, quarterly : journal dedicated to the advancement of knowledge about database manage- : ment systems and DBMS applications. Its objective is to provide access to : leading articles on tools, techniques, and methodologies of databases. The : journal is targeted at the professional who is responsible for the design, : development, use and management of database information systems. JDM's : mission is to provide a forum for articles developed by theoreticians, : researchers and practitioners to stay abreast of challenges in database : technology management. Furthermore, the journal will strive to provide : comprehensive coverage of the managerial and organizational issues of : database technology. : : Prospective authors are invited to submit manuscripts for possible : publication in JDM. Topics may be drawn from, : but not limited to, the following areas: : : - Database Administration : - Emerging Technologies and Databases : - Strategic Data Management and Competitiveness : - Success Factors for Database Technology Management : - Data Warehousing and Data Mining Technologies : - Information Resources Management and Databases : - Executive Information Systems and Databases : - Strategic Planning and Database Design : - Information Requirements Analysis : - Data Quality and Information Management : - Database Design and Data Modeling : - Object-Oriented Databases : - Database Technology and Human Factors : - Real World Knowledge and Databases : - Database Security and Integrity; : - Database Technology and Networking. : : Interested authors should consult the Journal's manuscript submission : guidelines at http://www.idea-group.com : : All submissions and questions should be addressed to: : Dr. Shirley A. Becker, Editor : : Journal of Database Management : Computer Science & Software Engineering : Florida Institute of Technology : 150 West University Blvd. : Melbourne FL 32901-6975 : Tel: 321/674-8149 Fax: 321/674-8192 : E-mail: becker@cs.fit.edu : : ===== Start of ISWorld List Footer ===== : ISWorld list is a service of the Association for Information Systems (AIS) : (http://www.aisnet.org) hosted at University College Dublin. For archives, : subscribing, or posting "norms" see http://www.isworld.org/isworldlist : ===== End of ISWorld List Footer =====

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