There is a company that produces glass bottle inspection machines. These machines take multiple pictures of every bottle that goes through it, and a software analyses them to detect defects.
A technician, employee of this company, is on site in a client's plant, working on a machine that doesn't work. Since he can't figure out what is going on, he decides to call an engineer of the company to help him. This engineer is a member of the software development team.

Technician : 