Descriptor: "*WAREHOUSES" / Language: spanish / Topic: data warehouses - Searchworks@Jio Institute Digital Library Search Results

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Start Over Descriptor "*WAREHOUSES" Topic data warehouses Language spanish

Author: Villarroel, Rodolfo H., Gómez, Yessica M., and Krause, Constanza B.
Subjects: *DATA security, *CONCEPTUAL models, *COMPARATIVE studies, *COMPUTER security, *DATA modeling
Abstract: This paper presents a comparative analysis of proposals for the conceptual modeling of Extraction- Transformation-Loading processes (ETL) and proposals that incorporate security in data warehouses and ETL processes. The method used considers the characteristics of the proposals and their principal activities in the ETL process modeling. Furthermore, considers proposals that incorporate security in the modeling of data warehouses and ETL processes. Considering the lack of existing proposals, it is concluded that is necessary to incorporate security in the ETL processes modeling to assist in obtaining secure data warehouses. [ABSTRACT FROM AUTHOR]
Published: 2013
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Author: Sepúlveda, Sabina Carrera, Contreras, Marcela Varas, and Sepúlveda, Angélica Urrutia
Subjects: *DATA warehousing, *RELATIONAL databases, *OLAP technology, *MODEL-driven software architecture, *FUZZY algorithms, *DATA modeling, *MULTIDIMENSIONAL databases, *MANAGEMENT
Abstract: In the databases field, several methods have been proposed for the generation of the logical design of a data warehouse, on the other hand there are also studies that allow the storage and operation of fuzzy data in relational databases. This paper presents a methodological proposal with an MDA approach. which allows to generate the logical design of a fuzzy DW. The technique was used to identify the basic elements of multidimensional modeling and extends them to manage fuzzy attributes in the measures at a conceptual level, through the application of a sequence of transformations to avoid the generation of a logical fuzzy multidimensional design. A key element for this process is the extension of the CWM OLAP metamodel with fuzzy stereotypes. Currently there is no formal method that allows to realize this kind of transformations. [ABSTRACT FROM AUTHOR]
Published: 2010

Author: Arboleda, Francisco Javier Moreno, Isaza, Fernando Arango, and Arias, Jaime Alberto Echeverri
Subjects: *TRANSPORTATION engineering, *DATA warehousing, *MANAGEMENT information systems, *MULTIDIMENSIONAL databases, *DATA modeling, *SYSTEM analysis
Abstract: Today, thanks to global positioning systems and mobile devices equipped with sensors, it is possible to capture information about the trajectory followed by moving objects such as persons, animals, and vehicles, among others. In this paper we analyze, in particular, the trajectories followed by moving objects on a predefined route, as in the case of a public transport system, in which vehicles should travel by a predetermined route. We present a case study where this type of trajectories are incorporated as a subject of analysis in a data warehouse. [ABSTRACT FROM AUTHOR]
Published: 2010

Author: Torres, Liudmila Padrón
Subjects: *DATA warehousing, *BUSINESS enterprises, *DECISION making, *STANDARDIZATION, *COMMUNICATION
Abstract: Today, data warehouses are the point of attention for big enterprises since it is one of the main supports for decision making process; hence, the importance of information quality and reliability. This article deals with one of its formation processes as a means of achieving this purpose: data cleaning and address standardization. In order to guarantee an effective client communication, by telephone or e-mail, an enterprise needs a list of clients clear enough, together with standardized addresses. This helps to avoid problems with loosing the image or credibility of the organization and offers the client more professional and rapid services. [ABSTRACT FROM AUTHOR]
Published: 2006

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