Due to the large increase in the use of data communication and information exchange
services of different types in different environments, the standard and the programming
had to be a language of characterization is ideal for scalability and develo
pment that serve
the growing needs in the best form and in the shortest possible time and was the most
widely used language and the most widely used XML language.
he adoption of graphics architecture sometimes created a problem affecting the
performance of information transmission networks due to the large volume of data
exchanged as well as the need for large storage capacity at both ends of the transmission
and reception.
Effective ways of reducing the amount of data exchanged through the network had to
be found.
There have been many scientific researches and practical experiments on finding
effective ways to reduce the actual size of the data and by adopting different parameters
that affect the process of compressing the files so as to achieve better results by reducing
the volumes of files exchanged with attention to times of compression and decompression
of files.
In this research, we focused on the study and comparison of some compression
algorithms for files and their effect on data communication in networks.
The mentioning relational database system term has become a synonymous to
database system, but the monopoly of big companies that work in database systems field
has become an obsession for persons who work in this field, because of the high costs o
f
this systems. For this reason the concerns turn towards the advanced technique : the native
XML database systems which are free or most of them are open source systems because of
the increasing dependency on XML files and particularly in transporting data between
different applications and the availability of collections of related files. This has
summoned towards a system to manage and organize them, for this reason the NXDs
appeared. The aim of this study is making a comparison between the capabilities of
RDBMS and NXDs in accordance to multiple standards , investing these two techniques
in practical application , make the relevant tests which reflect the use of these techniques
on the suggested application , display the results and give future suggestions.
