Set The Baseline
Schedule
The baseline schedule is set in most project management
software by copying the start and end dates to baseline or planned start and end
dates. For international projects these are done separately for each subproject.
Now suppose that you have developed the plan using the method (or any method)
and you find that the final date for project completion is not acceptable. This
must happen almost 100% of the time, don’t you think?
What do you do then? The often tried approach is to look at the
critical path. The critical path is the path in the project
from beginning to end that is the longest path in the project such that if any
task in this path is delayed, the project is delayed. It sounds nice and simple,
doesn’t it? Why doesn’t this approach work? Because of issues and risk. Who is
to say that the tasks that have risk and issues are on the critical path?
Most of the time the tasks with issues and
risk are not on the critical path.
Instead, they linger in the middle, vague zone of tasks.
Management pays attention to the tasks in the critical path and ignores the
tasks with risk unless they are on the critical path. They try to shorten tasks
that have no risk. How can you do this? You cannot. If a task takes 10 days and
has no issues, then it will take 10 days unless you make significant changes to
the task!
What else can you do? Here is a series of actions you can take to
shorten the schedule. It is the combination of the steps that add up to results.
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Divide up tasks in the schedule (including the critical path
tasks) to make the work performed more in parallel.
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Consider paths in the project that contain tasks with
significant issues. Here is where management and team attention can be employed
with advantage. Why? You can examine the tasks that have issues and try to
address the issues. By resolving or simplifying the issues, you can develop
better and likely shorter durations for the tasks.
-
Review carefully dependencies among subprojects and major
summary tasks. Can more parallel effort be done here?
How do you use these actions? Bottom up. You begin with the
subprojects that have the most risk and issues. Then you progressively analyze
and review other subprojects. Since you can link the subprojects together in the
project management software, you can always get an overall view of the effects
of the changes that you have made.
This approach was employed in a large-scale deployment of
satellite television in a major global region. Originally, the plan called for
the rollout to be done in 17 months. This was just too long due to competitive
pressures. The traditional approach was taken to shorten the critical path by
applying more resources. The result was a plan shorter by 4 months, but much
higher in cost.
Then the approach in this section was taken. It was found
that people had made many assumptions related to dependencies. Also, there were
a number of issues that could be resolved in project planning. After 2 weeks of
effort by the project leaders, the team, and management the time was reduced by
6 months! Not bad, eh? A side benefit was that people had a much better idea of
what was involved in the project— they participated in the
analysis and so supported and understood the work involved in more detail.