An assignment for Carrier. Carrier has a lot of mechanic out there to repair their machines. The problem was though, a machine can give a lot of errors which indicate the problem. And it’s impossible for the mechanic to know them all. In the current situation they have to call the service center of Carrier, and ask for help. This application enables the mechanics to enter or scan (with a camera tool) the error code, and solve the problem by using the application.