Can anybody answer my question here? I have estimated for 5 to 6 tasks like analysis (4 hrs), design (3 hrs), logical review (1 hr), peer review (1 hr), unit testing (1 hr), coding (2 hrs) and release (1 hr). But during analysis itself I came to know that rest of the activity will not be applicable. In this scenario, should I make the hours zero for all the tasks that have become obsolete or should I delete the tasks?