Skapa referens, olika format (klipp och klistra)
Harvard
Gustafsson, T. och Hammarberg, E. (2011) A Mobile Unit Synchronization Algorithm - A Partial Database Synchronization Scheme between a Centralized Server and Mobile Units. Göteborg : Chalmers University of Technology
BibTeX
@mastersthesis{
Gustafsson2011,
author={Gustafsson, Thomas and Hammarberg, Erik},
title={A Mobile Unit Synchronization Algorithm - A Partial Database Synchronization Scheme between a Centralized Server and Mobile Units},
abstract={This report covers the development of a new synchronization module for the Jetas Quality
Systems AB. The developers at the company did not appreciate the existing module, based on
Microsoft Synchronization Framework and thus this project was launched. The project first
conducted a literature study to try to find a previously developed model that could be adapted to
the Jetas system. This, unfortunately, was unsuccessful and the project continued with the design
of a conceptual model for a synchronization module based on the Jetas systems characteristics.<br><br>
This model was implemented and enhanced iteratively and functionality added according to the
prioritizations done in the requirements specification. The synchronization algorithm itself is an
optimistic timestamp based method. It utilizes the synchronization primitives that are already
present in the Jetas database and used by other parts of the system as well. The selection of
which data to synchronize, so as to only do incremental updates each synchronization, is done by
keeping track of the timestamps of the last time a synchronization was performed by that PDA
while each database row has a timestamp of when it was last changed. Conflict detection is
performed by comparing the timestamps of uploaded and server version of the DataRow in
question.<br><br>
The module developed was tested in an office environment, but in this environment it showed a
slight improvement in performance even while database indexes are optimized for the previous
synchronization module and several optimizations can be done before this prototype is finalized
for a production environment. In addition to this, the new synchronization module can easily be
extended to implement new functionality, such as multiple users per PDA.},
publisher={Institutionen för data- och informationsteknik, Nätverk och system (Chalmers)
, Chalmers tekniska högskola},
place={Göteborg},
year={2011},
note={31},
}
RefWorks
RT Generic
SR Electronic
ID 143634
A1 Gustafsson, Thomas
A1 Hammarberg, Erik
T1 A Mobile Unit Synchronization Algorithm - A Partial Database Synchronization Scheme between a Centralized Server and Mobile Units
YR 2011
AB This report covers the development of a new synchronization module for the Jetas Quality
Systems AB. The developers at the company did not appreciate the existing module, based on
Microsoft Synchronization Framework and thus this project was launched. The project first
conducted a literature study to try to find a previously developed model that could be adapted to
the Jetas system. This, unfortunately, was unsuccessful and the project continued with the design
of a conceptual model for a synchronization module based on the Jetas systems characteristics.<br><br>
This model was implemented and enhanced iteratively and functionality added according to the
prioritizations done in the requirements specification. The synchronization algorithm itself is an
optimistic timestamp based method. It utilizes the synchronization primitives that are already
present in the Jetas database and used by other parts of the system as well. The selection of
which data to synchronize, so as to only do incremental updates each synchronization, is done by
keeping track of the timestamps of the last time a synchronization was performed by that PDA
while each database row has a timestamp of when it was last changed. Conflict detection is
performed by comparing the timestamps of uploaded and server version of the DataRow in
question.<br><br>
The module developed was tested in an office environment, but in this environment it showed a
slight improvement in performance even while database indexes are optimized for the previous
synchronization module and several optimizations can be done before this prototype is finalized
for a production environment. In addition to this, the new synchronization module can easily be
extended to implement new functionality, such as multiple users per PDA.
PB Institutionen för data- och informationsteknik, Nätverk och system (Chalmers)
, Chalmers tekniska högskola,PB Institutionen för data- och informationsteknik, Nätverk och system (Chalmers)
, Chalmers tekniska högskola,
LA eng
LK http://publications.lib.chalmers.se/records/fulltext/143634.pdf
OL 30
