Uma arquitetura eficiente para armazenamento, gerenciamento e acesso a dados em dispositivos móveis com recursos computacionais limitados

AUTOR(ES)
DATA DE PUBLICAÇÃO

2006

RESUMO

The use of mobile devices such as handhelds and Personal Digital Assistants (PDAs) to data access anywhere and any time is becoming more common. However, PDAs devices have limited computational resources. Therefore, reduction of memory space and efficiency in accessing data are critical issues. This work presents an efficient framework to data access, storage and management in mobile devices with limited computational resources. Thus, a column storage strategy was defined and implemented in which the values for each single column (or attribute) are stored contiguously in memory. This storage strategy provides: (1) data manipulation through relational view; (2) support for dealing with chema evolution; (3) optimization of queries with vertical filters (projections); (4) mechanism to guarantee the data consistency through to the maintenance of integrity constraints; and (5) storage strategy to increase the data compression rate in the PDAs devices. Experimental results show improvements of performance and reduction of required memory space to data storage.

ASSUNTO(S)

informÁtica - dissertaÇÕes sistemas de informacao

ACESSO AO ARTIGO

Documentos Relacionados