Spatial and Spatio-Temporal Multidimensional Data Modelling: A Survey
Source: International Journal of Advanced Research in Computer and Communication Engineering (IJARCCE)
Data warehouse store and provide access to large volume of historical data supporting the strategic decisions of organizations. Data warehouse is based on a multidimensional model which allow to express user's needs for supporting the decision making process. Since it is estimated that 80% of data used for decision making has a spatial or location component, spatial data have been widely integrated in Data Warehouses and in OLAP systems. Extending a multidimensional data model by the inclusion of spatial data provides a concise and organized spatial data warehouse representation. This paper aims to provide a comprehensive review of literature on developed and suggested spatial and spatio-temporel multidimensional models.