- Qualification to MIL-STD and MIL-SPEC environments is
Alarms: Mission profile environments are not
Escapes: Use operational mission profile environments to develop test environmental profiles; modify test environments as operational data becomes available.
Benefits: Equipment will be properly designed for
- Test environments are specified at the weapon system
Alarms: The same test environments are applied uniformly to
Escapes: Allocate weapon system mission profiles to
the subsystem level and confirm by measurement.
environments will be representative of subsystem operating
Design limit qualification tests are based on mission profile stress level.
Alarms: Simulated mission profile environments do not consider worst case life cycle profile.
Escapes: Use worst case environmental conditions of the system and subsystem life cycle profiles for design limit qualification tests.
Benefits: Equipment will survive the extremes of the
life cycle environment.
Qualification by similarity with proven in-service equipment is used.
Alarms: Comparison is not made between previous qualification test requirements and new operating environments.
Escapes: Quantify environmental differences to identify the need for additional tests.
Benefits: Suitability of equipment for use in new operating environments will be verified.
"Manufacturing Plan"Best Practices: How to Avoid Surprises in the World's Most Complicated Technical Process. Department of the Navy; Reliability, Maintainability, and Quality Assurance Directorate (NAVSO P-6071), March 1986, pp. 5-25 to 5-30.