Dunk is right, an hour is cutting it extremely fine if this is the transfer time you have. Flights are same terminal which reduces challenges but, even setting aside the chance that the transfer desk is unmanned and you need to go and ask at one of the arrivals desks for them to find someone (which in turn assumes the first person you ask is cooperative), JED covers a large area and has no jetways, hence a relatively lengthy bus journey to and from the plane.
Whilst it is safe and relatively clean, one thing JED certainly isn't is teutonic in its efficiency.