AMC4 ATM/ANS.OR.C.005(a)(2) Safety support assessment and assurance of changes to the functional system

• ED Decision 2017/001/R found in: ATM/ANS Provision of Services (2017/373) (Mar 2025)

AMC4 ATM/ANS.OR.C.005(a)(2) Safety support assessment and assurance of changes to the functional system ED Decision 2017/001/R DETERMINATION OF THE OPERATIONAL CONTEXT FOR THE CHANGE (a) When determining the operational context for the change, service providers other than an air traffic services provider should ensure that: (1) the specification of the operational context can be shown to be true for all circumstances and environments in which the changed service is intended to operate; (2) the operational context is completely and coherently specified; and (3) the specification of the operational context is internally consistent. (b) The operational context must be specified so that its adherence to (a)(1) and (a)(2) is observable and measurable either directly or indirectly with a degree of certainty commensurate with the level of confidence sought from assurance. AMC4 ATM/ANS.OR.C.005(a)(2) Safety support assessment and assurance of changes to the functional system ED Decision 2017/001/R DETERMINATION OF THE OPERATIONAL CONTEXT FOR THE CHANGE (a)       When determining the operational context for the change, service providers other than an air traffic services provider should ensure that: (1)       the specification of the operational context can be shown to be true for all circumstances and environments in which the changed service is intended to operate; (2)       the operational context is completely and coherently specified; and (3)       the specification of the operational context is internally consistent. (b)       The operational context must be specified so that its adherence to (a)(1) and (a)(2) is observable and measurable either directly or indirectly with a degree of certainty commensurate with the level of confidence sought from assurance.