Recent advances in wireless communication networks and portable computers
have led to the emergence of a new research area called mobile computing
An important part of the research conducted in mobile computing systems
has been done on mobile data management.
What make the mobile data management different from the conventional
data management are the mobility of the users or
the computers connected to the system,
and the resource constraints such as wireless bandwidth and battery life.
As a result of such distinctive features of mobile systems,
the data management techniques developed for conventional distributed
database systems may not work well in a mobile environment.
Research contributions are required in a variety of areas, such as
distribution of data on mobile and/or non-mobile computers, processing
of queries and transactions submitted by mobile users, maintaining the
consistency of data cached on mobile computers, and so on.
Another important issue that needs to be considered in mobile data
management is the requirement of processing
queries and transactions within certain time
limits in order to maintain the temporal validity of the data accessed
by those queries and transactions. Our basic objective in this project is
a through investigation of the issues to develop various types of
methods for mobile data management in response to the requirements