Interaction Design & Industrial Design

Experience Design, Interaction Design, Industrial Design, Product Design; what is the proper way to discriminate those who focus on the interaction of a product & the experience they create from the designers who just make beautiful objects, problem solve, or design user interfaces (on a screen)?

The process is definitely different. A lot of interaction/experience design (on a screen or with arduino) is create & test. Much of Industrial Design is research & problem solve. Product design is obsessed with creation & working through obstacles.