The necessity to evaluate the functionality
performances of Information System has emerged
from the importance of Information Technology in
effectiveness and efficiency of work processes in
an organization, causing rapid growth of demands
in terms of resources performances in Information
System. Evaluation of Information System
performances means evaluation of performances in
hardware, software, computer networks, data and
human resources. The main purpose of
Information System functionality performances
evaluation is upgrading and especially improvement
in quality of maintenance.
The Information System functionality
evaluation represents the procedure of assessing
how successfully Information System fulfills its
objectives. The process of evaluation includes
synthesizing and determining gathered individual
scores with the purpose of forming common
opinion about the functionality of evaluated
Information System. In the process of expressing
general opinion professionals usually rely on their
individual assessment abilities. Quality assessment
and Information System oversights is done with
the purpose of organization’s Information System
resources preservation and data integrity, in other
words preservation of Information System
functioning at the desired level of successfulness.
The following may be regarded as the most
important factors that influence the success of an
information system: functionality of Information
System; data quality; expected usefulness of
Information System; expected usage simplicity of
Information System; self-efficiency of Information
System user; usage of Information System;
influence of information system on individuals;
Information System user’s satisfaction and
organizational factors.
Information System user’s satisfaction is often
used for the assessment of Information System
functionality performances. The relation between
Information System user and Information System
functionality is very complex, since the
Information System user satisfaction depends on
interaction between a user and Information
System, which determines user’s subjective rating
on increased quality of his work. Nowadays,
experts are using a number of different instruments
for measuring the user’s satisfaction with the
Information System, among which several are
particularly emphasized: (a) the relation between
user and Information Technology professionals,
(b) definition of demands for change in
Information System, (c) current and prompt
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2/2009
information, (d) user’s level of training for work
with Information System, (e) quality of output
information, (f) quality of available documentation
and (g) user’s level of dependence on Information
System.