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.
Wheel and Axel The mechanical advantage of a wheel and axle is the ratio of the radius of the wheel to the radius of the axle. In the wheel and axle illustrated above, the radius of the wheel is five times larger than the radius of the axle. Therefore, the mechanical advantage is 5:1 or 5.