Uma Infra-estrutura para IntegraÃÃo de Modelos, Esquemas e ServiÃos Multidimensionais e GeogrÃficos / An Infra-structure for Integrating Multidimensional and Geographical Models, Schemas and Services

AUTOR(ES)
DATA DE PUBLICAÇÃO

2005

RESUMO

Decision support is a field of Information Technology that aims to help in understanding the behaviour of the business data of an organisation. Data Warehouse (DW), On-Line Analytical Processing (OLAP) and Geographical Information System (GIS) are tools for providing decisionmaking support. While DW and OLAP are technologies for performing multidimensional processing, GIS is a specific software category for supporting geographical processing. The integration among these tools allows GIS to perform geographical analysis over DW and OLAP data, while multidimensional tools may be used to cross and exam geographical data at different levels of details. Much research is aimed at performing multidimensional and geographical processing. However, most of them use technologies that are platform dependent, do not reuse the OLAP and GIS legacy or define data structures/types that may not be supported by most of the currently available commercial products. In order to contribute to the provision of this integration, this work defines the following infra-structure: a software architecture that aims to reuse the OLAP and GIS legacy and is based on Geographical DW and metadata - Geographical Online Analytical Processing Architecture (GOLAPA); a framework to guide the design of a Geographical DW schema - Geographical Data Warehouse Framework (GeoDWFrame); a metamodel for applications that aim to process analytical and geographical queries - Geographical Analytical Metamodel (GAM); A high level abstract schema that shows how the integration between the GAM metadata and the CWM OLAP multidimensional metadata can be made - Geographical Multidimensional (GeoMD); a metamodel that defines how the previous metadata can be semantically integrated - Geographical Multidimensional Metamodel (GeoMDM) and finally, a XML schema for integrating and changing multidimensional and/or geographical data and metadata that a priori are in distinct XML schemas - Geography Markup Language for Analysis (GMLA). We highlight that this infrastructure is based on standard specifications and has been experimentally validated through a case study implementation. For the development of this case study, open and extensible technologies were used to integrate multidimensional and geographical services on the Web

ASSUNTO(S)

integration, dw, olap, sig integraÃÃo, dw, olap, sig ciencia da computacao

ACESSO AO ARTIGO

Documentos Relacionados