A charity has asked you to prototype a system that keeps track of all donations they have received. This system has to maintain the names and addresses of donors, their particular interests, the amount donated and when the donation was made. If the donation is over a certain amount, the donor may attach conditions to the donation (e.g., it must be spent on a particular project), and the system must keep track of these and how the donation was spent.

Discuss how you would prototype this system, bearing in mind that the charity has a mixture of paid workers and volunteers. Many of the volunteers are retirees who have had little or no computer experience.