NDLI: Two approaches to the integration of heterogeneous data warehouses

Content Provider	Springer Nature Link
Author	Torlone, Riccardo
Copyright Year	2007
Abstract	In this paper we address the problem of integrating independent and possibly heterogeneous data warehouses, a problem that has received little attention so far, but that arises very often in practice. We start by tackling the basic issue of matching heterogeneous dimensions and provide a number of general properties that a dimension matching should fulfill. We then propose two different approaches to the problem of integration that try to enforce matchings satisfying these properties. The first approach refers to a scenario of loosely coupled integration, in which we just need to identify the common information between data sources and perform join operations over the original sources. The goal of the second approach is the derivation of a materialized view built by merging the sources, and refers to a scenario of tightly coupled integration in which queries are performed against the view. We also illustrate architecture and functionality of a practical system that we have developed to demonstrate the effectiveness of our integration strategies.
Starting Page	69
Ending Page	97
Page Count	29
File Format	PDF
ISSN	09268782
Journal	Distributed and Parallel Databases
Volume Number	23
Issue Number	1
e-ISSN	15737578
Language	English
Publisher	Springer US
Publisher Date	2007-12-23
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Data integration Data warehouse Data mart Multidimensional database Heterogeneous information Memory Structures Operating Systems Information Systems Applications (incl.Internet) Data Structures Database Management
Content Type	Text
Resource Type	Article
Subject	Information Systems and Management Information Systems Software Hardware and Architecture

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