PROBLEM STATEMENT DESCRIPTION:
Telephone directory is the one, which contain details of an individual along with their landline numbers. Apart from the telephone number of individuals it also contain address and number of important institution like hospital, schools, police station and various organization belonging to particular district. It not only contains local codes but also ISD codes.
The names are present in alphabetical order so that one can easily find the required person along with their address and telephone numbers.i It also holds advertisement of some famous institution during times of enquiry.
We can depend on it entirely.
IDENTIFYING ACTOR AND USER:
2. Customer name.
3. Customer telephone number.
Thus the usecase diagram for telephone directory was created successfully.