Essence of Maintenace Project is recalibrated periodically size and the optimal mix in the distribution of resources among the non-scheduled maintenance Corrective (at fault) and the planned activities for the prevention, programmed according to the three canonical modes:

• A fixed (or a number of cycles)
• On the basis of inspection sensory or instrumental (early diagnosis)
• Schedule one-off (modifications and improvements)

Maintenance is a scientific and technical discipline. So systematically uses terminology and units of measure specifications and unified.

In order for a system can be made measurable and comparable over time measured with itself and / or with similar situations, you need to uniquely define the parameters and their units of measurement. In more detail:

• The first parameter is the Political System Maintenance including allocating resources
• Units of Measurement System (UNI) are included in the Indices or KPI, always normed.

Objective of the Project Maintenance is an increase in non-episodic (ie consolidated over time) of the plant availability as a result of the increased reliability.