Multidimensional data warehouses and OLAP systems do not provide adequate means for dealing with changes in dimension data, changes appearing frequently in dynamic application areas as current business systems. As data warehouses and OLAP tools serve as decision support sys-tems they have to reflect such changes. Temporal data ware-houses propose sophisticated modelling tools for covering any changes in dimension data but cannot be used with cur-rent OLAP systems. In this paper we show some techniques to incorporate temporal dimension data into multidimen-sional OLAP systems. In particular we show how to su-perimpose conventional multidimensional data warehouses with temporal master data, enabling queries to span multi-ple periods and to re...
Time is a vital facet of every human activity. Data warehouses, which are huge repositories of histo...
Data warehouses (DWH) have been established as the core of decision support systems. On top of a DWH...
Usually, OLAP(On Line Analytical Processing) systems provide data visualization through a multidimen...
Abstract. Multi-dimensional analysis is one of the most important ap-plications of data warehouses, ...
Data warehouses are a primary means for a consoli-dated view on the data within an enterprise and fr...
Time is a vital facet of every human activity. Data warehouses, which are huge repositories of histo...
Time is a vital facet of every human activity. Data warehouses, which are huge repositories of histo...
Time is a vital facet of every human activity. Data warehouses, which are huge repositories of histo...
Time is a vital facet of every human activity. Data warehouses, which are huge repositories of histo...
Time is a vital facet of every human activity. Data warehouses, which are huge repositories of histo...
When changes occur on data organization, conventional multidimensional structures are not adapted be...
The MultiDim model is a conceptual multidimensional model for data warehouse and OLAP applications. ...
Data warehouses contain valuable information for decision-making purposes, they can be queried and v...
Data Warehouses (DWs) use an omnipresent time dimension for keeping track of changes in measure valu...
Data warehouses contain valuable information for decisionmaking purposes, they can be queried and vi...
Time is a vital facet of every human activity. Data warehouses, which are huge repositories of histo...
Data warehouses (DWH) have been established as the core of decision support systems. On top of a DWH...
Usually, OLAP(On Line Analytical Processing) systems provide data visualization through a multidimen...
Abstract. Multi-dimensional analysis is one of the most important ap-plications of data warehouses, ...
Data warehouses are a primary means for a consoli-dated view on the data within an enterprise and fr...
Time is a vital facet of every human activity. Data warehouses, which are huge repositories of histo...
Time is a vital facet of every human activity. Data warehouses, which are huge repositories of histo...
Time is a vital facet of every human activity. Data warehouses, which are huge repositories of histo...
Time is a vital facet of every human activity. Data warehouses, which are huge repositories of histo...
Time is a vital facet of every human activity. Data warehouses, which are huge repositories of histo...
When changes occur on data organization, conventional multidimensional structures are not adapted be...
The MultiDim model is a conceptual multidimensional model for data warehouse and OLAP applications. ...
Data warehouses contain valuable information for decision-making purposes, they can be queried and v...
Data Warehouses (DWs) use an omnipresent time dimension for keeping track of changes in measure valu...
Data warehouses contain valuable information for decisionmaking purposes, they can be queried and vi...
Time is a vital facet of every human activity. Data warehouses, which are huge repositories of histo...
Data warehouses (DWH) have been established as the core of decision support systems. On top of a DWH...
Usually, OLAP(On Line Analytical Processing) systems provide data visualization through a multidimen...