2.2.1 Defining requirements for SUDA elements
Assurance objective: Define safety requirements for each element of the RAS architecture sufficient to ensure safe behaviour of that element.
Contextual description: The safety requirements of the RAS must allocated, apportioned and interpreted for each element of the RAS architecture (Sensing, Understanding, Deciding, Acting and Infrastructure). The safety requirements must define what each element must achieve if the safety requirements defined for the RAS as a whole are to be satisfied. The safety requirements for each element must take account of the defined operating scenarios, as well as the environmental assumptions that have been made (for example, whether the required behaviour needs to be achieved at night or in heavy rain).
Practical guidance: The way in which this objective is demonstrated may be different for different elements of the architecture as defined in the following sub-sections.