With the web development technology maturing, RIAs (Rich Internet Applications) are preferred to by more and more people. After many years of silence, under the situation that Flash nearly dominates the Internet world, Microsoft is unwilling to lag far behind, against many deficiencies of the rival and quickly developed a so-called "Flash killer" technology-- Silverlight.

In the four parts of articles, I’ll show you a basic RIA image management system based upon the popular Silverlight 3 technique, through which we are to explorer the typical routine and necessary skills in creating Silverlight based line-of-business applications.

We are going to, as far as possible, follow the development of software engineering to introduce aspects of the case in this chapter. However, since this case still remains at a level on a simplified version, so for some modules, such as needs analysis and so on, will be simplified or be omitted.