Whilst designing for screens—including Web, mobile and rich interaction applications (RIAs)—you often need to create a prototype to see whether the application works properly before moving onto the development stage. Prototypes are also essential in Web projects. For example, when you plan an online ordering process, you have to be sure that every step [...]

   Whilst designing for screens—including Web, mobile and rich interaction applications (RIAs)—you often need to create a prototype to see whether the application works properly before moving onto the development stage. Prototypes are also essential in Web projects. For example, when you plan an online ordering process, you have to be sure that every step [...]