In previous team skills, the features and theuse
case models were at a high level of abstraction
for the following reasons.
■ We can better understand the main characteri stics of
the system by focusing on its features and key use
cases and how they fulfill user needs.
We can assess the system for its completeness, its
consistency, and its fit within its environment.
We can use this information to determine feasibility
and to manage the'scope of the system before
making significant resource investments.