A group of tasks related to technical maintenance can be divided to current
maintenance works and repairs and renovations(Czarnecki and Emmons 2002). These
activities require the tools supporting the work of technical staff. However, the scope of
issues that may possibly occur very often requires specialist, even expert knowledge.
For such instances exactly, there are special systems dedicated for a limited group of
objects and particular tasks. In most cases, these are intelligent systems which, based on
certain input signals, are able to formulate conclusions useful for solving a
problem(Kaplinski 2009;Zheng and Han 2011).