Please answer in detail the following based on IT services industry

Current Reality Tree to address the unfulfilled customer need

What hinders the service getting fulfilled?

List all the "problems" (UDEs)

Link the UDEs with one another with a Cause and Effect relationship

... by applying the principles of Categories of Legitimate Reservation

Identify the Root causes and Core problem

Categorize them under Span of control, Sphere of influence and beyond influence and control

For the causes that fall within span of control (Top three) suggest CA and PA