Design of Maintenance Information System (MIS)

The Maintenance Information System gains a significant role when CBM is introduced in an industry in two important aspects. The first aspect is collecting and processing of great quality of information that is never available before, regarding the condition of each part of a machine. This information is used to detect the faults or tendency of deterioration or probable time that a machine is expected to fail. Obviously, this simplifies the Maintenance Manager's job in optimizing the frequency of examination or inspection on the machine. The second aspect of the information system stresses on the necessity to provide information so as to carryout maintenance works within lead-time, i.e. in a period of time, which may be very short elapsing between the alarm and emergency shutdown. This becomes a tool for the Maintenance Manager to schedule or programme the maintenance works within the lead-time effectively by reducing the waiting costs, shortage costs, logistic costs, etc. This is clearly interpreted in the following Figure.

                                                          Figure: Maintenance Information System for CBM

Thus a good Maintenance Information System puts the Maintenance Manager in very comfortable position to take the decision in following two conditions.

• The condition of the machine is near to the lead time; procedure will be followed through planning office (work requisition - work order with specification programming-carried out work).
• The condition of machine is already within lead-time (next to the shutdown); the information will be directly passed to the foreman for emergency maintenance.