<<they are all pop up boxes with a key pad,>>
Doesn't this increase the controller workload if he/she has to key-in information? It's one reason why Computer-Assisted Approach Sequencing was rejected at Heathrow many moons ago. Too much time was spent using a keyboard to input info which in a wholly human environment the controller knew anyway!
Is EFPS yet another case of technology for the sake of it or does it really have significant advantages over the old-fashioned system?