Schedule Updating and Project Control - Construction Project Scheduling and Control - page 178

Schedule's
most recent
update

Schedule
updated with
new info

Updated
schedule
finalized

Updated schedule
discussed with PM

Updated
schedule reports
distributed

Updating period

Figure 7.13 Project update cycle

Design Development 90%

1-Sep-15 31-Dec-15

(a)

Design Development 90%

1-Oct-15 31-Dec-15

(b)

Design Development 90%

1-Oct-15 31-Jan-16

(c)

Figure 7.14 Design development: (a) 90% activity as originally planned; (b) 90% activity with
start delayed one month and finish date kept as planned; (c) 90% activity with start delayed
one month and original duration maintained

start was delayed 1 month (see Figure 7.14a). Unless the scheduler is told explicitly
by the project manager, there are two possibilities:

1. Keep the end date, 31 DEC 2015, which means the duration will shrink by 30
days (Figure 7.14b).
2. Keep the original duration, which means the end date will slip by 30 days to
30 JAN 2016 (Figure 7.14c).