The same careful planning as was the case with AMPs, naturally has to go into the preparation of the DED Defect and Maintenance List, as well as the subsequent testing and tuning and post-DED trials, but on a considerably extended scale.
Olwayilo kunye olukhathalayo njengangoko kwakunjalo ngeeAMP, ngokwendalo ifanele iye kumalungiselelo eDED kuluhlu lweziphene kunye nogcino kwakunye novavanyo olulandelelwayo kunye novumelwano kunye novavanyo kwasemva kweDED kodwa kwisikali esandisiweyo kakhulu.