Question

Identify conceptual classes and descriptive classes in telephone billing system

Answer 1

Answer:

Conceptual class can be identified by studying the use case looking for relevant noun phrases. Just like search term used in an Internet search engine, not all nouns are relevant.

Classes represent the central objects in a system. It is represented by a rectangle with up to 3 compartments. The first one shows the class's name, while the middle one shows the class's attributes which are the characteristics of the objects.