Biomechanical maintenance program
The biomechanical maintenance program was a computer program in Soong-type androids which performed a large set of diagnostics, analyses and calibrations. 

Lieutenant Commander Data regularly executed his maintenance program. He had access to this program in his quarters and used the  computer to perform the selected operation. This program included the following components:

 Cognitive Interface Timing Test
 Autonomic Regulatory and Diagnostic Scan
 Diagnostic Analysis
 Servo Motor Coordination
 Precision Motor Coordination
 Positronic Network Analysis
 Balance Sensor Diagnostic Sequence
 Locomotive Servomotor Dynamic Test
 Optical and EM Sensor Calibration
 Auditory Sensor Calibration
 Chemical Process Analysis
 Fluidic Sensor Diagnostic

In 2367, Data mentioned this program in a letter to Commander Bruce Maddox. Data said he rarely needed the professional medical services of Doctor Beverly Crusher as this program was self-sufficient for his needs. ()
Computer technology