Look around you. Do you see an item that is manufactured? Perhaps you see a car, or desk, or the device that you are reading this on. And chances are the manufacturer of that thing has more than one model of that item. All those model types make up a “product line” for that manufacturer.
How do manufactured products get created? They are engineered. Teams of people work on creating that device for you to use. Business analysts create requirements of what the market desires. Systems, electrical, mechanical and... [More]