In Visual Studio, you can draw a use case diagram to summarize who uses your application or system, and what they can do with it. To create a UML use case diagram, on the Architecture menu, click New UML or Layer Diagram.
The Benefits of Wheel Alignment. Proper wheel alignment is extremely important to protect tire investment and tire life, maximize fuel economy and stop safely in wet weather conditions. Proper wheel alignment helps vehicles hold the road better and feel more stable.
Summary. If you're shopping for a car and you see the term rear-wheel drive, it means that the car's driven wheels -- i.e., the wheels that receive power from the engine -- are the ones in back. In a rear-wheel-drive (RWD) vehicle, the front wheels don't drive the car at all; their only job is to steer. This has a few advantages relative to a front-wheel-drive (FWD) layout. First, because there are fewer components between the front wheels, those wheels are able to turn more sharply.