DMDW
2003
13 years 6 months ago
2003
Data Warehouse-(DW) logical design often start with a conceptual schema and then generates relational structures. Applying this approach implies to cope with two main aspects: (i) ...
DMDW
2003
13 years 6 months ago
2003
Defining data placement and allocation in the disk subsystem can have a significant impact on data warehouse performance. However, our experiences with data warehouse implementatio...
DMDW
2003
13 years 6 months ago
2003
Geographic Information Systems (GIS) showed their insufficiencies in front of complex requests for decision-makers. Resulting of the association of the databases and the decision-m...
DMDW
2003
13 years 6 months ago
2003
A review of literature pertaining to data warehouse implementations over the last eight years has been undertaken. It was found that the views of data warehouse practitioners in pa...
DMDW
2001
13 years 6 months ago
2001
Organizations are adopting datawarehouses to manage information efficiently as "the" main organizational asset. It is essential that we can assure the information qualit...
DMDW
2001
13 years 6 months ago
2001
In this paper we address the issue of conceptual modeling of data used in multidimensional analysis. We view the problem from the end-user point of view and we describe a set of r...
DMDW
2001
13 years 6 months ago
2001
Star schema, which maintains one-to-many relationships between dimensions and a fact table, is widely accepted as the most viable data representation for dimensional analysis. Rea...
DMDW
2001
13 years 6 months ago
2001
Research on logical design of OLAP cubes has tended to assume that the rollup hierarchy in a cube dimension takes the form of a balanced tree. However, experience from industry in...
DMDW
2001
13 years 6 months ago
2001
In this paper, we present SISYPHUS, a storage manager for data cubes that provides an efficient physical base for performing OLAP operations. On-Line Analytical Processing (OLAP) ...
DMDW
2001
13 years 6 months ago
2001
In this experience report we consider some issues in the development of a data warehouse for meteorological and climatology data at MeteoSwiss. The paper describes the meteorologi...