1. Introduction
Information systems usability issues have been widely studied in the last decade. Various papers, books,
technologies are devoted to finding an answer to the crucial question of how to make information systems more easy
and effective to use? Usability has been a topical issue, especially in human-guided systems. Many hardware
improvements, for instance, keyboard with function keys, mouse, touchscreen etc. enhance usability of humanguided
systems. The use of business process models is one of the research areas that could potentially generate new
ideas for improvement of information systems’ usability.