Exploring Schema Designing Tools
When the Visual Studio .NET IDE is focused on an .xsd file, you are looking at the XML Schema Designer. Defining an XML Schema is your context, and you will notice changes in the IDE.
The Schema Designer page (see Figure 2) looks a bit like a form and the visible region is designable just like a Web or Windows form. The main menu will have a Schema menu, the Properties window will be reflecting properties of an XML element, and the Toolbox will have an XML Schema tab. (Each of these elements is visible in Figure 2.)
Figure 2 The Schema menu, XML Schema toolbox tab, a Schema element in the properties window with the XML Schema Designer right in the middle.