4) Use notes or color to draw attention to important features.
5) UML 2 introduced a new optional element to drawing UML diagrams. Including this helps create a nice visual boundary for your diagram and allows you to clearly label the diagram in what's called a "namebox", a rectangle with a slanted lower right corner.
6) Address primary structure and behavior first and model complexities and detail in a separate diagram. SmartDraw allows you to link multiple diagrams, so the viewer can drill down into your diagram for more detail. To link an object in your chart to another diagram, select the object and choose Hyperlink from the Insert tab. A small plus sign will appear in the object, and clicking on it opens the linked file or web page.
7) SmartDraw makes it easy to share your UML diagram with others in a business presentation or on the web. You can export your diagram into any common image format or as a PDF. You can also export your diagram into any Office® document in a single click. When you paste your diagram into another program (such as PowerPoint®), you can edit it by simply double-clicking on the diagram in the other program. This opens the diagram in SmartDraw for editing, and your changes will be updated in the other program automatically.