As some of you might know, Boeing and Airbus both have their own system for aircraft and engine monitoring. Boeing uses EICAS (Engine Indication and Crew Alerting System) and Airbus uses ECAM (Electronic Centralized Aircraft monitoring). There are a few differences between those two systems. The only thing I like to know:
What reasons do Boeing and Airbus have to use their own system. What do they think what the advantages of their own system are, compared to the other system.
Does anyone of you know? I really like to know.