Some aspects of the prototype (class specifications, design patterns, or coding idioms) might be able to be reused, but we placed very little pressure on the team to consider reuse at this point.

Having identified the business problem and the core design patterns, we can now move toward building a solution designed according to given architectural guidelines and a prototype application.

At last the paper designs and implements the VIESDT prototype making full use of object-oriented technology and design patterns.