TPM: Total Productive Maintenance is a complete system for maintenance of equipment that aims at achieving an optimal production environment devoid of no defects, reduce downtime, stoppages, first time right and no accidents. The founddation for TPM is 5s.
One distinct advantage of total productive maintenance is that it empowers the shop floor to work in a concerted manner to ensure that machines are functioning at their optimal performance.
In fact, in a lean production setup that is practicing TPM, you find it difficult to distinguish between normal operators and maintenance staff.
This is because they all are proactively involved in the maintenance of machines which leads to increased productivity, lower costs, improve quality and extended machine lifespan.
Developed in the early 50s, Total Productive Maintenance is a program for increasing efficiency of machines and processes which stands on eight pillars with 5S as its foundation.
More detailed information about TPM, can be found at Wikipedia