A short attention span or constant pain will increase the number of training periods required to achieve a given outcome. The trainee's past experience with computers, interest and confidence Past experience will be a benefit, provided the experience is with a similar system. A high level of interest will smooth the training task. Confidence will also help. We must be alert to special factors which may affect the person's learning capacity or experience.
Medication can have an impact.
People who do not speak English well or at all maybe at a disadvantage in their learning task. This can be very important, particularly for children or for those with very severe disabilities. This list is not exhaustive, but it does show that training requirements need to be considered very carefully. This is available on CD-ROM in the form of interactive multimedia training. People can work at times which best suit them.