This is because the clients and the nurses that service the clients were geographically dispirsed. We developed a system based on the old forms that they used and processes with which people were familiar so there was no learning curve. The system has virtually no marginal cost, adding a user can cost nothing. Our belief is that computers are only valuable to the extent that they help people do things that people need to do. Just writing a program and hoping it will be useful usually won't work.
Computers are useful if they help people do what they do better.
To do a good job at this we have to look at how people plan to use it and what kinds of things they expect when they use the program. A good design includes visual elements, logical flow through the site, speed of access and more. The prototype is a first version of the program that we can look at to see what we forgot. We can see if there are any areas that cause confusion and create problems for the users. It is worth taking the time to make things right.