All the replies seem to be from people who received their basic training in 'my era'.
As someone who went into airline systems in 1979-80, one of my early concerns was actually the negative effects of de-skilling the various functions to the point there was little or no knowledge of the basics.
This resulting in those responsible for maintaining a computers semi-permanent data not understanding what they were entering and not having the knowledge to query what to my generation was obviously incorrect data. This did not apply to just Load Control/Load Planning, but across the Ground Disciplines.
For most of the next 20 years, Clients and Employers always had one, or two 'old timers' in each discipline who knew the fundamentals, but there seemed to be few following in their footsteps.
In a recent telephone conversation the caller quoted what I wrote in an internal paper (they hoard all documentation) on this in the early 1980s and said that they had just seen for real what I quoted as an example! (Tom If your reading this send me a copy :-)
Whilst many foreign Airlines do train the fundamentals of each discipline and then train on the computer, sytem I am increasingly concerned this is no longer the case in the UK Airline/Handling Agency environment and has'nt been for a looooooooong time.