4.1.3 Tailoring of requirements.
Specification requirements should be driven by the equipment application rather than equipment capability. Requirements should be tailored to reflect the projected operating conditions for the equipment specified in the end item specification, based on field and measured data, rather than subjective opinion (see 1.1.1). Two factors are of significant importance in military and space environments that are not common in the commercial environment. They are; survivability and combat system integration. The platform should be designed to carry out its mission in extreme conditions, which may include exposure to shock, fire and thermal extremes. The specifier must also understand the constraints and limitations of supporting systems, which will operate under the same conditions. Finally, the specifier must accommodate the direction of future system design, including integration with other systems.
Replaced/Superseded by document(s)
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This document provides guidance for the tailoring of general and detailed requirements which must be addressed in the preparation of specifications for electronic equipment used in ships (including submarines), space, mobile (vehicular), and land applications.
Requirements in end-item specifications should be tailored for all applications (see 4.1.3).This does not allow the specifier to disregard a performance characteristic. All equipment characteristics addressed herein should be considered and evaluated by the specifier in the development and tailoring of requirements. Tailoring should not be based solely on the capabilities of the equipment being procured and the subjective opinion of the specifier. Rather, tailoring decisions should be based on evaluation of the equipment mission, and the projected operating environment of the equipment based upon analytical and/or measured field data, and should reflect unique platform requirements, such as noise and hazardous material requirements for submarines, and requirements for operation and maintenance by personnel.