paramount importance in several disciplines of science and
technology, such as data acquisition, analysis of information,
bioinformatics, etc. In most of the cases the information is
stored in several locations in different format with minimal
commonalities, so combining multiple information sources into
a uniform view became a major challenge in those disciplines.
In reality, decision making process that does not involve
information available in all possible sources is often incomplete,
even incorrect, so decision-makers require a mechanism to
integrate all possible sources of information into a unified view