Questions of the compatibility of
Thesaurus and UDC.
In the documentation
systems the effective search can be realised by the combination of UDC and
Thesaurus. However, between the two classification systems there is no
compatibility. A descriptor can be characteristic of several classes at the
same time. One class may have several descriptors as characteristic feature.
Therefore the best user
support is connecting the descriptors with the notations. The descriptors
function as characteristics of the notations.
Some important problems
appear.
The homonyms and the
polysemes have to be treated with special attention. The same descriptor can be
characteristic of several classes.
From different points of
views the descriptor may have different meanings. It is not possible to assign
characteristics to each class in simple forms.
Because of these two
problems the traditional relation structure of the Thesaurus must be modified.
The Hungarian universal
Thesaurus and the UDC is under the process of connection at present.
Appropriate notations are assigned to each descriptor and non-descriptor.
Based on the accumulated
experience thereby the universal characteristic of the Thesaurus is increased.
The determination of new descriptors has high probability.