I am new to use case base estimation technique. I have the following scenario and facing little difficult to conclude my use case point count. Suppose I need to execute 3 steps one after another. Each of these steps, by themselves does not leave the system in a consistent state. So from use case point counting should I consider 1 use case having 3 transactions? Is my understanding correct?
Also for use case estimation along with functional document, I must require design document right? Without design document, I can still estimate with functional document but it will not be accurate right?