Once a baseline for analysis is identified, delay events are added to the programme.
Delays can be added independently or, where there is more than one, in chronological order. The latter allows the cumulative effect of delays to be assessed.
As the events are inserted, the resulting delay on the completion date, if any, is then recorded. This assists in identifying which events contributed to the critical delay and by how much.
It is preferable to add the delay event as discrete programme activities, complete with logical relationships and durations.