FREE online courses on Information Technology - Chapter 7 IT – DATABASE
MANAGEMENT - Distributed Databases
Organizations are building more distributed databases in which different parts
of the database are located on different computers in a network. The movement
toward client-server computing and the implementation of groupware will
accentuate this trend. This type of database raises a number of issues for the
organization, including the following:
¨
Will data be replicated across computers or will
there be only one copy?
¨
If data are replicated, how frequently must
different versions be updated to reflect changes (at times there will be
different values for the same data if all copies of a file are not updated to
once).
¨
How will updates to the database be coordinated
so that its integrity is maintained?
¨
Who “owns” distributed data and who has access to
it?
¨
Distributed databases offer users easier access
to data at the cost of over all higher complexity of the system.
