Título: | A TRANSACTION MODEL FOR DBMS INTEGRATION TO A MOBILE COMPUTATION ENVIRONMENT | |||||||
Autor: |
SERGIO DA COSTA CORTES |
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Colaborador(es): |
SERGIO LIFSCHITZ - Orientador |
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Catalogação: | 17/DEZ/2004 | Língua(s): | PORTUGUESE - BRAZIL |
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Tipo: | TEXT | Subtipo: | THESIS | |||||
Notas: |
[pt] Todos os dados constantes dos documentos são de inteira responsabilidade de seus autores. Os dados utilizados nas descrições dos documentos estão em conformidade com os sistemas da administração da PUC-Rio. [en] All data contained in the documents are the sole responsibility of the authors. The data used in the descriptions of the documents are in conformity with the systems of the administration of PUC-Rio. |
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Referência(s): |
[pt] https://www.maxwell.vrac.puc-rio.br/projetosEspeciais/ETDs/consultas/conteudo.php?strSecao=resultado&nrSeq=5784&idi=1 [en] https://www.maxwell.vrac.puc-rio.br/projetosEspeciais/ETDs/consultas/conteudo.php?strSecao=resultado&nrSeq=5784&idi=2 |
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DOI: | https://doi.org/10.17771/PUCRio.acad.5784 | |||||||
Resumo: | ||||||||
Portable computerized devices have become widely used in
many different
application domains and are, together with
telecommunication networks,
the underlying technology for mobile computing. In this
environment Data-
base Management Systems (DBMS) may provide reliability,
security and
availability, besides data integrity and efficiency
persistent data access.
These DBMS might be located either in conventional (fixed)
networks, with
the conventional data server role, or might serve global
and local data for
mobile computers and related technology. There are many
transaction models for mobile database management. However,
the particular characteristics of this mobile environment,
such as frequent disconnections, weak and
intermittent connectivity of wireless networks and clients
movement, are not
always well addressed. The goal of this thesis is to
propose a computational
model that enables the integration of a DBMS to a mobile
environment.
Indeed, we present a new multi-level database transactional
model in order
to handle mobile requirements and ACID transaction
properties, where a
DBMS is present. Our model is defined using the ACTA
formalism based
in first-order logic. The implementation of proposed
transaction model becomes feasible through the use of
object-oriented frameworks and software
agents, with gave support to deal with the particularities
of the mobile
computing environment. Finally, we give a comparison
between the most
relevant transaction models for the mobile computing
environment and our
proposed model, emphasizing the treatment given to the ACID
transactions
properties.
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