As they are gradually
becoming mature, digital libraries are being put more frequently
under a magnifying glass in order to be evaluated. Some of
the world's leading information scientist like T. Saracevic
(Rutgers University, USA) claim that it is too early to evaluate
quality of existing digital libraries as they are not yet
taken their final shape and there is much to be expected from
such young and important information institutions. The idea
of evaluation of services of digital libraries has come from
scientists and professionals measuring quality of the existing
library services. Some scientists also consider problem of
persistence of digital libraries an their information sources
as a prerequisite for design of evaluation tools for measuring
various aspects of digital library services. Literature review
in this field also shows major concerns for comparison of
digital library content representation and categorization,
advanced tools and processes in traditional libraries and
their counterparts in digital libraries. Aim of this paper
is to give a view of current perspectives in this area.