Example 2: Activity has already started

Activity A has been started, hours have been spent, and a capacity planning has been carried out per project.

Activity duration (project days)	15
Rough capacity requirement	200 in work center 10
Actual start date	day 4 week 44 year 92
Hours spent	30 in work center 10
Detailed capacity requirement	100 in work center 10
Percentage completed	20%

The following figure depicts activity A being carried out:

W	Workdays
_	Non-workdays
p	progress
b	backlog

20 percent of activity A has been completed. In other words, 20 percent of the planned capacity for activity A is ready. Hours to be spent: 0.8 x 200 = 160 hours. Based on the capacity load table, LN computes what percentage of the activity duration has lapsed. The capacity load table shows that 20 percent corresponds to 15 percent of progress in activity duration.

This progress is equal to 0.15 x 15 = 2.3 days of the lead time. Planned progress (6 days) is 6/15 x 100% = 40% of the activity duration. The backlog = 6 - 2.3 = 3.7 days. According to the capacity load table, this corresponds to a capacity backlog of 20% = 40 hours. These 40 hours must be added to the remaining lead time of 9 days. Capacity to be utilized according to the original planning: 60% = 120 hours. To achieve the finish date of the activity, extra capacity must be added: 40/120 = 33%. The capacity load per week is then as follows:

Week	Number of days	Percentage of Activity Duration	Capacity Requirement (per Week)
46-92	9	60%	0
47-92	12	80%	60+20=80
48-92	12	80%	0
49-92	100%	100%	60+20=80