If you just need to drive a car, you don’t need to know how the engine and the transmission works. These two aspects of cars focus on different things. On one side, you learn about changing gears, making turns, looking through the mirrors, and speeds. O
H. Mili, G. Jaoude, \. Lefebvre, and G. Tremblay. Proceedings of the Workshop on Legacy Transformation: Capturing Business Knowledge from Legacy Systems - OOPSLA'2004, (2004)