Abstract: This metric is the ratio of the maintenance personnel who are actively doing the maintenance work (direct) to the maintenance personnel supporting the maintenance work (indirect). Direct personnel include those workers in the maintenance department that repair, maintain, modify or calibrate equipment.
MIDI (Musical Instrument Digital Interface) is a protocol designed for recording and playing back music on digital synthesizers that is supported by many makes of personal computer sound cards. Originally intended to control one keyboard from another, it was quickly adopted for the personal computer.
Midi Message Format. Within the MIDI Specification there are two basic types of message byte: the status byte and the data byte. The Most Significant Bit of a status byte is always 1, the Most Significant Bit of a data byte is always 0. The maximum length for a standard MIDI message is three bytes but for some types of MIDI message the length can be less.