This research aims to develop a model of decision-making for the selection of the most
appropriate strategy of the maintenance methods of equipments. A model has been developed in
order to determine the maintenance plan that causes the lowest cost,
whether the cost of
repairing or losses result from interruptions of work for maintenance.
This research aims to design
an effective system for detection of various known and unknown intrusion and
snooping operations which are SCADA systems exposed to, depending on the
idea of Markov Chains and the concept of probability windows.
