How long to TEST a car ?

and logging it on using old test documentation that could have had a mistake/error?

If you made a mistake three years ago and was unaware of that mistake, then by repeatedly using documentation instead of recording directly from the vehicle itself, then it is or could be possible now that if you had made a mistake, then the last three years records are incorrect and you'd not know it. 

DVSA have always pointed out for many years that we must not use job cards etc to record vehicle data but to take that data each time from the vehicle to be tested. 

When I'm at work and servicing vehicles I use Autodata everyday. When I enter vehicle data into Autodata I look at the registration number directly from the car, mentally read it and walk to the computer to enter that what I think I remember as the registration number. If Autodata did not put a line diagram of the car as a basic picture on the front screen for visual identification, do you know how many times I'd select the wrong vehicle details being serviced for the wrong vehicle? 

Many registration numbers between different makes and models of vehicles are only one character different, which makes selecting a Ford possible when a Renault is in the service bay!! 

I've seen this many times and now have got into a routine of double checking data before I use it. Another point to be raised as well is that where more than one person uses the same computer to look up technical data, and I've seen this many times as well, double check that the vehicle you are servicing is still the current vehicle on screen as our place more than one user can use the data and vehicles change without prior notice!

Hence you could have a Ford transit on screen for 9.8 litres of oil when actually the vehicle being serviced only requires 6.0 litres, if you see where I'm coming from! 

I wish the garage I worked at used job cards, I could have avoided working on the sh1t jobs and picked up another card😄

I don't as a rule even if they have given me the previous ticket that has my name on it