ABSTRACT
Technology has given engineers a very wide range of technical objects and items with vast abilities to fulfil variety of requirements. Usually, these devices are set up in systems to accomplish set tasks, such as the extraction or transportation of mass material, dumping, mechanical, chemical or thermal processing, and so on. The equipment utilised in these systems usually has complicated construction and must be operated according to the manufacturer’s recommendations and precise advice if an appropriate level of performance is to be achieved. Users of technical objects should pay attention to the realisation of object exploitation-understood here as the process of changes of the object’s properties running in time. These changes are also interesting for designers and manufacturers of these objects. They are a point of interest for object users-after spending money to purchase technical equipment, users expect it to fulfil its duties and functions in the most convenient way.
