FRMS = Great for working crazy hrs, gives operators more ability to roster aircrew for extended night duties. Quality of rest prior to mounting duty and during duty is a key issue. FAID scores are farcical and based on truck drivers driving vehicles in the wee hours, irrelevant to the cognitive skills required in an aviation environment.
CA0 48-Complex to navigate around at times although business rules can be programmed into the programme mentioned above by A Charlie. 48 Can result in longer duty periods overall than FRMS however generally squashes working at crazy times of the night.
FRMS or fatigue management systems were developed to "get around" items in 48. They both have their uses. All FRMS's have to be approved in principal by the regulator and require good mental horsepower and research to get over the line with regards to approval.
Careful what you wish for! FRMS allows extended periods of working at crazy times of night......
