منابع مشابه
Designing Secure Data Warehouses
Organizations depend increasingly on information systems, which rely upon databases and data warehouses (DWs), which need increasingly more quality and security. Generally, we have to deal with sensitive information such as the diagnosis made on a patient or even personal beliefs or other sensitive data. Therefore, a final DW solution should consider the final users that can have access to cert...
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A Data Warehouse (DW) is a database that collects and stores data from multiple remote and heterogeneous information sources. When a query is posed, it is evaluated locally, without accessing the original information sources. In this paper we deal with the issue of designing a DW, in the context of the relational model, by selecting a set of views to materialize in the DW. First, we brie y pres...
متن کاملDesigning Data Warehouses with Object Process Methodology
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متن کاملDesigning Distributed Data Warehouses and OLAP Systems
On-line analytical processing (OLAP) systems deal with analytical tasks in businesses. As these tasks do not depend on the latest updates by transactions, it is assumed that the data used in OLAP systems are kept in a data warehouse, which separates the input coming from operational databases from the output going to dialogue interfaces for OLAP. In this article we present a 3-tier architecture...
متن کاملDesigning Data Warehouses with OO Conceptual Models
M ost developers agree that data warehouse, multidimensional database (MDB), and online analytical processing (OLAP) applications emphasize multidimen-sional modeling, which offers two benefits. First, the multidimensional model closely parallels how data analyzers think and, therefore, helps users understand data. Second, this approach helps predict what final users want to do, thereby facilit...
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ژورنال
عنوان ژورنال: Data & Knowledge Engineering
سال: 1999
ISSN: 0169-023X
DOI: 10.1016/s0169-023x(99)00029-4