Abstract:

There was developed various maintenance a systems, such as reactive preventive, proactive or aggressive systems and many more. However it turns that many companies do not know what their weaknesses are. and subsequently what are the areas they should have to focus. Out of the systems theory to improve each complex system it is necessary to improve its single components. The presented paper bases on the literature review and field research in the industrial companies. It determines crucial areas of each maintenance system and introduces the complex way to identify its state. Furthermore it advises the process of improvement.