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Critical Chain Project Management vs. Critical Path

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Learn the differences between Critical Chain Project Management and Critical Path. Try our Award-Winning PM Software for free: https://www.projectmanager.com/?utm_source=youtube.com&utm_medium=social&utm_campaign=CriticalChainProjectManagementvs.CriticalPath, Learn how and why the ground-breaking critical chain project management methodology left critical path management in its wake! Sign up for a free 30-day trial of our PM Software at https://www.projectmanager.com/?utm_source=youtube.com&utm_medium=social&utm_campaign=CriticalChainProjectManagementvs.CriticalPath ProjectManager.com Director Devin Deen presents the history of critical chain project management and its advantages over the long standing critical path methodology. He explains how this style of project management came out around 1996-1997 when Eliyahu Goldratt published his book, Critical Chain Method. Want to learn how to plan, execute and monitor a project using the critical chain management approach?. Discover the benefits of incorporating the critical chain management methodology into your projects by watching this info-packed video now! Subscribe to our YouTube Channel here: https://www.youtube.com/user/projectmanagervideos Want some more great Project Management Tips? Go here: https://www.youtube.com/watch?v=frQkd2O0KLA
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Text Comments (34)
TOP Rated (7 days ago)
video starts at 02:08
Batir K (1 month ago)
It won’t work. Consider this, the Resource A (R.A) estimates time to complete Work Package 1 (WP.1) in T time. The PM compresses schedule for WP.1 to T/2 time (plus T/2 buffer). Now, R.A will finish late and use buffer time, or finish in T/2 time and submit incomplete work with hidden errors. R.A knows he/she is now underperforming and feels bad about it. For the next Work Package B, R.A will submit time estimate of 2T. The PM will half it to T and allocate a buffer T. This will allow R.A to comfortably complete WP.2 on time. It will also wise up other resources to use inflated numbers in their estimates. Great, isn’t it? Another problem is, what happens if there is dependency, if R.A has to hand in completed WP.1 to Resource B. As I mentioned above, Resource B will either receive incomplete package on time, or will have to delay working on WP.1 because R.A is late and is using extra time from buffer. Also, this completely goes against principles of agile (self-organizing teams, and what not).
Too True (11 months ago)
Excellent presentation. I now have a good understanding of the CCPM concept and its use. Thank you so much!
Sarah Mawell (1 year ago)
Thank you for the overview on CCPM.. very good example... well done ..
John Morley (1 year ago)
I can't see how your software using TOC's CCPM methodology??? It's just only Gantt stuff???
If you have a technical question, please send it to [email protected] Thanks.
simon ward (1 year ago)
This is a great video and shows that Devin really knows his subject matter...great communicator thanks
Aziz Qulaysh (1 year ago)
Excellent thank you so much
classanddignity (1 year ago)
You not only taught what it does, but you explained it's purpose and the differences to the other critical path method, which gave the ultimate clarity. Bravissimo!
David Austin (1 year ago)
Robotically cutting their expected completion time by 50% is a great way to loose your best employees. Instead you should explain to them the urgency, ask them for a best case and worst case, and then expect from them the best case, but your buffer is added by (worstcase - bestcase)/2 for each task. Everything else he says is good. Shareholders have a expected delivery date of bestcase plus percentage buffer or buffer left whichever is less (if you are halfway through and buffer is gone then you need to crash or fast-track to get back the lost buffer). Also, you should always refer to your used or remaining buffer status in terms of percent, not hours.
Harinee Mosur (16 days ago)
David Austin Absolutely right.This is a common trend in Fixed bid projects where it can got 40-60, burn out the resource to achieve excess profit.
Jonathan G (1 year ago)
This was FANTASTIC!! You are a great communicator and I would think this method suits better than Critical path as that is more rigid and introduces possibilities for less or more effort from the project team. Love it!
Shweta Kaushal (2 years ago)
I watched many presentations on CCPM however this is by far best in term of clarity and content.
rodd aniel (7 months ago)
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Tony Karim (1 year ago)
I agree Shweta!
holyonfire (2 years ago)
Thank you for this! It was very helpful.
The Rising of Kendrick (2 years ago)
When I typed in "Chain Thinking" I wanted to see if there was anyone else that did it. What I mean by chain thinking is sometimes I start thinking about something then end up thinking about something totally different. For example, I think about Basketball then end up thinking about Chinese board games. I can't really explain it just happens.
OutOfTheBoxThinker (2 years ago)
If you want to learn more about the phenonemon you're describing and how to utilize it in a creative process, you might want to look into the concept of "mind mapping" ( https://en.wikipedia.org/wiki/Mind_map )
Stephen Miller (2 years ago)
you used 9.2 minutes of my time to put me to sleep.
Vishwa Deep Singh (2 years ago)
Thanks, nice explanation ..
Rizwan Ihsan (2 years ago)
Should the original timeline and buffer be kept a secret from the project team and only used for upwards communication?
Jay Bakst (8 months ago)
No! If anything, it is more important that it be thoroughly communicated with the project team. One of the difficulties in making introductory videos on Critical Chain (and this is a very good one) is that it is easier to explain that we cut task estimates than it is to explain why we cut task estimates. One big part of this is that estimates are just that, estimates! When I worked in 'traditional' PM, If I gave an estimate of 40 hours to complete a task, I expected that I would finish within the 40 hours. I knew that if I were late, then the next task would start and probably finish late. A quick cost benefit analysis told me that it was better to finish early than late. No one ever gave me kudos for finishing early and I received several 'what happened' when I was late. Experience has shown that people give an estimate that they can hit about 85% of the time.This is not being coy or unethical, it was my realistic estimate of when I was very confident that I could finish. Experience has also shown that the variability in these estimates effectively doubles the time to complete. Part of this is the CYA above and part is due to multi-tasking with my other project responsibilities. What never seems to come across in these videos is that after an organization has used CCPM for a while, and people understand that they are to provide 50% vs. 85% estimates, and they do not get yelled at when finish an individual task late, then they start to give aggressive dates to begin with and the buffer is added to their estimate (usually at a 50% add-on). This effectively is the same thing as described in the video with the 'cut 50%' part removed. Getting back to your question, for this to evolve successfully, the project team needs to understand the culture change required for CCPM.
Anuradha Kumar (2 years ago)
Excellent explanation.  Thanks a lot!
Ashley Wolf (3 years ago)
Nicely explained. Thank you
Michael Massaro (3 years ago)
Very helpful. thank you.
Gabriella Marpaung (3 years ago)
his eyes were blue and brown
Ashley Wolf (3 years ago)
That's so so random lol
Iliak Herrera (3 years ago)
Excellent video, help me a lot on a assigment!!!
Maher Ramdan (3 years ago)
is taking time from the schedule called crashing? as far as i know crashing is adding more resources and overtime to cut time
Ashley Wolf (3 years ago)
I believe he meant collapsing but crashing can be used interchangeably. He isn't referring to crashing as a form of schedule compression
Tom Moore (3 years ago)
Thanks.  The white board is a very effective tool for explaining the CC concepts.
Farhan Siddiqui (3 years ago)
Thank you Brother
Raghu Kasturi (3 years ago)
nice video! thank you!

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