What are the constraints when using critical path method CPM in schedule optimization

0 votes
I’ve been using the Critical Path Method (CPM) for schedule optimization, but I know it has its limitations. What constraints should I watch out for when relying on CPM to manage project timelines?
18 hours ago in PMP by Parshvi
• 4,340 points
4 views

1 answer to this question.

0 votes

CPM is useful for determining the longest sequence of dependent tasks, but it has several drawbacks. Here's what you should be aware of:

  • Rigid Task Dependencies - CPM assumes permanent dependencies when, in practice, teams frequently work in parallel or find ways to dynamically abbreviate jobs.

  • Limited Resource Consideration - It does not account for resource limits. You may have an optimum schedule, but if crucial persons or materials are unavailable, delays will occur.

  • Unrealistic Float Assumptions - CPM estimates float (slack time), but this assumes that tasks' priorities do not vary, which is not always the case in dynamic contexts.

  • Difficulty Handling Uncertainty - Variability in task durations is underappreciated. Unlike PERT, CPM does not take into account best- and worst-case situations.

  • Ignoring External Factors - External dependencies (vendor delays, government approvals) can derail even the best-planned CPM strategy.

CPM has a solid basis, but it is most effective when combined with risk analysis and resource management to prevent bottlenecks.

answered 16 hours ago by Naira

Related Questions In PMP

0 votes
1 answer
0 votes
1 answer

What does a project manager do?

As a Project Manager of an organization, ...READ MORE

answered Jul 22, 2020 in PMP by Sirajul
• 59,230 points

edited Jul 22, 2020 by Sirajul 805 views
0 votes
1 answer

Which is the best project manager certification?

Although there are many certifications available that ...READ MORE

answered Jul 22, 2020 in PMP by Sirajul
• 59,230 points
910 views
0 votes
1 answer

What is the best path to become a Project Manger?

Assuming you don't have sufficient experience, Here are ...READ MORE

answered Jul 22, 2020 in PMP by Sirajul
• 59,230 points
1,016 views
0 votes
1 answer

What's the salary of a project manager?

Project managers enjoy the most lavish salaries ...READ MORE

answered Jul 22, 2020 in PMP by Sirajul
• 59,230 points
954 views
0 votes
1 answer
0 votes
1 answer

What are the security concerns in using cloud-based PM tools for confidential projects?

Cloud-based PM solutions offer convenience but pose ...READ MORE

answered 16 hours ago in PMP by Naira
25 views
webinar REGISTER FOR FREE WEBINAR X
REGISTER NOW
webinar_success Thank you for registering Join Edureka Meetup community for 100+ Free Webinars each month JOIN MEETUP GROUP