What is LEAD and LAG in PROJECT MANAGEMENT? |Network Diagram| Project Schedule Management| PMP/CAPM
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- เผยแพร่เมื่อ 3 ก.ค. 2024
- In this PMP/CAPM certification training video for the new format of the PMP exam in 2022, we will learn what is LEAD and LAG in project management/project scheduling in context of project management network diagrams. The concept of lead and lag in project network diagrams can often be very tricky and confusing to understand when you are preparing for your PMP or CAPM exam. In today’s PMP/CAPM training video, I will explain you these two terms in the EASIEST WAY POSSIBLE! We will also be solving a difficult PMP/CAPM style question in the end to help you grasp the concept even better!
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----------------------⏲ TIMESTAMPS⏲ ---------------------------
0:00 What is LEAD and LAG in PROJECT MANAGEMENT?
01:16 What is LAG?
03:23 What is LEAD?
05:59 LEAD and LAG in Project Network Diagrams
11:22 Difficult network diagram example with LAG solved!
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#leadandlag, #projectscheduling, #pmpwithray
//DISCLAIMER - PMI Code of Ethics and Professional Conduct
Source of questions in this video: Questions discussed in this video are created entirely by myself taking into account my experience of preparing & writing the PMP exam and assessing the difficulty level of the same. Also, the scenarios are developed by me from my project management experience. Neither the questions nor the scenarios are abridged/recreated from any text book or online forum. These questions are NOT created from memory and hence DO NOT represent the actual PMP exam questions in any way. Use these questions only as a guide to help you in your preparation and not as a question bank of PMP questions. Only PMI reserves the right to publish any PMP exam questions from past exams. Links in the description section may be affiliate links.
PMI, PMP Certificate, PMI-PMP Badge, PMBOK, PMP, PgMP, PfMP, CAPM, PMI-SP, PMI-RMP, PMI-ACP, and PMI-PBA all are registered marks of the Project Management Institute, Inc. Views expressed in this video are fully personal and does not guarantee any direct correlation or causation towards increased probability of passing the PMP examination.
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Declaration: I am not a PMI R.E.P.
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This is the best explanation I have seen thus far Ray.
Thank you for watching & commenting :)
Best lead and lag explanation in TH-cam! Thank you sir!
Glad it was helpful! :) Thank you for watching & commenting.
Great video as usual Ray! Keep it up.
Thank you for watching & commenting Nitish :)
Thank you for making such type of videos.....
Thank you for watching & commenting Dnyansh! All the best for your PMP prep!
Great video and review of leads and lags!
Glad it was helpful Natalie! Thanks for your comment!
Amazing lesson! Thank you so much for the excellent lesson.
Thank you for watching & commenting Jesus :)
Thanks Ray, concept cleared much much better now! Thanks for all these amazing videos. Very helpful.
Happy to help Shilpa! Thank you for watching & commenting...
Thanks for such an easy explanation. Keep it up.
Thank you for watching & commenting Vijay :)
Great...!! You made the my understanding of lag and lead much easier...
Glad it helped! All the best with your exam prep!
Wonderful. Lucid explanation..
Thank you for watching & commenting! :) All the best for your PMP.
One of the few youtube videos without a dislike. I didn't know it was possible!
Thank you for watching & commenting :) Appreciate your feedback!
Very helpful thank you
Glad it was helpful! Thank you for watching & commenting :)
Excellent explanation
Thank you for watching & commenting Neelam :)
really it's a good one
Hi Barada, thank you for your comment! :)
Thank you Ray
Thank you for watching & commenting Rakesh :)
Excellent video on the concept of "Lead & Lag".. Thank you Ray!
Glad you enjoyed it :)
Thanks for sharing another video. Its helped a lot to understand the concept
Glad it was helpful! :) Thanks for watching & commenting
Thanks Ray. Great explanation. Keep it up !
Thank you for watching & commenting :)
Excellent
Thank you for explaining it in a simple way. It was incredible.
Thank you Aminullah for watching and commenting!
Oh my god, thank you.
I will come up with more videos soon! Thank you for watching & commenting! :)
Thank you :)
You're welcome! Thanks a lot for watching & commenting :)
Hello Ray, your video explained the concept of Lead and Lags in the most simplest way. Thank you so much for your help and please continue this effort.
Glad it helped! Thank you for watching and commenting.
Thank you sir ,it’s really helpful to understand the concepts .keep going
Always welcome! Thank you for watching & commenting :)
You are amazing, watching and loving all your videos! It’s helping me a lot, you make things simple, amazing! I’ve also sent you a request on LinkedIn. Thank you again 😘
Hi Raquel. Thank you for watching & commenting. More videos to come soon! Stay tuned...will add you on LinkedIn.
Thanks for another master's piece...
More questions & answers would have given a good polish to make it better.
Thank you for watching & commenting Harsha :) I will definitely try to add more concepts for the topic in future.
Hello Mr.Ray,
This is Bappy from Bangaldesh.
I follow your video on PMP preparation & really like your simplified way of explaining all contents.
Keep it up brother...
Hi Bappy. Thank you for watching & commenting! Bhalo theko...:)
Thanks for using the two different relationship examples; I got the answer wrong but now I am aware why, so hopefully I don’t make the same mistake on the exam!
Thanks for watching & commenting Jennifer :) Happy to know that you are improving...
Good
Thank you for watching & commenting :)
Thank you, 2 more questions I can answer for the exam, 178 more to go je je!! Thank you for the great examples and explanation. I bought your Udeny mock up. I would do it in a month.
Excellent! All the best to you Sarah!
Very good explanation. The more I see videos on different topics from this channel, I am becoming more and confident about my understanding. Thank you, Nilotpal Ray for such wonderful explanations
Glad it was helpful Raghavendra! Thank you for watching & commenting!
Thank you . Can you please upload a video on do's and dont's when we take the exam from home. Some clarity on - can we have white papers , if not how can we solve mathematical questions etc.
Hello. Yes, I will keep it as part of my future video ideas...
Thank you Niloptal. I have cleared PMP. Your videos on ITTO 's and Change Control helped me for better understanding on some concepts. Thank you.
Hello Ray , I was able to clear PMP yesterday with Above Target in all areas , Your videos definitely helped me a lot :-) I have sent you a request on LinkedIn ( By name : Shyamsundar ) . Thanks a lot , You are doing an amazing job
Hi Shyamsundar! Big congratulations for your achievement. :) I have added you on my LinkedIn network!
Congratulations Shyam... I will be appearing for exam in few days. I have question regarding type of questions being asked these days in PMP exam. are all questions were very lengthy?
Thanks for explaining this.. do you have any videos on decision tree matrix? I seem to struggle with that a bit. Thanks
Hi Ankita, I don't have a video on decision tree matrix yet. However, I will definitely keep it as a part of future video ideas...!
I am confused. Why it was not FS+2?
The question said 2 month after the start of activity 1.
How to know whether it's Finish first or Start first?
How to differentiate between SS, FS etc? Please help.
Your videos make a lot of sense and they are easy to undersyand. Thanks a lot for teaching us.
Hi. As you rightly mentioned it's said in the question "2 month after the START of activity 1"...that's why it's START to START....if it would have said "2 month after the FINISH of activity 1".....then it would have been FINISH to START....hope this helps!
Thank you.
Is it having a relationship with Fast-tracking?
Yes, when it's LEAD, it's Fast-tracking in a way since you are doing parallel activities...
@@PMPwithRay Thank you.
Indeed very clear and concise explanation about Lead & Lag. I've 1 question, in the last question the ans is SS +2 M. As per the question Dev team has to wait till the Design team complete. So it should be FS+2 Months. Please clarify.
Thanks for watching. It is clearly mentioned in the question stem: "A software development team can begin to write the scope of development only after 2 months of the start of design"....hence it's definitely as SS. Nowhere in the question it is mentioned that "Dev team has to wait till the Design team complete. Please don't assume things that are not mentioned in the question. This is a key learning for your PMP prep.
Thanks for highlighting typo mistake in PMBOK. Which version is this 6 or 7.
Hi, the typo was for PMBOK 6. That's no more in PMBOK 7.
Lead is only applicable in FS relationship but get lead we are falling in SS relation. Before books arrive, we started reading them. Activity was not finished.
Hi Saakshi. Please go through the lecture again, lead is applicable on a discretionary dependency and not a mandatory dependency. The book example is an example of discretionary dependency.
Discretionary means that finish-to-start might be preferential, but it is not a hard logical dependency. In other words, there is no physical limitation or constraint that the predecessor needs to be finished before the successor activity can start.
Need to know Monte Carlo analysis in your video.
Thanks. I will keep Monte Carlo analysis as one of my future video ideas.
Hello Ray, Thank you for wonderful videos! One on Perform ICC is extremely helpful and it's in my go through before exam list.
I am taking exam next week and want your advice. I hope you see this comment before my exam.
Is there a strategy I can use on planning time management during exams i.e. 89 questions in x minutes (including time for review) and next 111 in 'y' minutes (including time for review)?
Thank you for all your help.
Hi..thanks for watching & commenting. Of course you need to have a plan for 200Q in 4hrs. I suggest you plan 50 questions/hr including reviews if any. There is seldom chance to come back to questions in the end of the exam. Watch my video 'Why people FAIL PMP Exam' whrere I have talked it in detail.
@@PMPwithRay Thanks Ray! Will do!
Hello Ray, Thanks for the video it's really helpful
However, i do have a doubt on the last question we solved, it says ofter 2 months of design we can start the scope development so can't option C be right, i.e. FS+2 months??
No, it's not correct. Reason is as I explained in the video. Please recheck the video (theory part) and let me know if you are still facing issues.
Do leads and lags impact path duration? Do exam questions include leads/ lags in CPM questions?
Yes, lead & lag do impact path durations and PMP exam does contain questions from this topic.
Hi Ray, this helped me somewhat. The explanation that Lag=negative and Lead=positive, but find myself still struggling with some of the relationships. Any suggestions?
Thanks for watching & commenting Jenny :) The relationships are very nicely explained in Rita's book. Pls check.
@@PMPwithRay I will, thank you!
Super!
So lead is related with schedule compression e.g fast tracking. is it correct?
Hi Snehashis..yes that's correct. Lead is a schedule compression technique. Thanks for your comment :)
Can we use lead with start to start relationship if we have two activities that have different scope of work but related together with start to start relationship?
Hi. Generally, SS is a mandatory dependency, and as I have mentioned in my video, you cannot have lead for a mandatory dependency. It should only be for a discretionary dependency.
@@PMPwithRay And if the obligation has a low priority, especially when there are resources equivalent to the sources of the predecessor activity, and then it has the ability to start the next activity before starting predecessor , for example i bought books from Amazon hard copy books but i have a soft copy and i will start reading soft copy till hard copy arrived then i will complete reading with hard copy
In this example there is no hard mandatory dependency between activity
How come the book example of lead is not Finish to Finish cos we need to finish the delivery in order to finish reading the book. I don't understand how it is finished to start as we start reading as soon as we order, so basically, we start reading before delivery finishes. KINDLY HELP ME UNDERSTAND
Hi Kushal, the base activity was to 'read all the books'. And this was basis the assumption that you read from the hard copies, not soft kindle ones. Hence, this activity is a F to S. Finish the delivery to Start reading the books. This is also with a valid assumption that you have ordered all the books together in one go!
Finish the delivery in order to finish reading the books is not correct because just 'finishing' the delivery does not mean that you have 'finished' reading the books right? It can take 15-20 days for you to complete the activity 'read the books' even after the delivery 'finishes'. Then how it is a F2F relationship? Hope this is clear.
Please help me with this doubt. PMBOK definition of FS says successor activity cannot start until a predecessor activity has finished. Doesn't that mean that there is a mandatory dependency where the second activity cannot start without the first one completing. Then why are we saying that LEAD cannot happen for mandatory dependencies? Isn't FS a mandatory dependency?
Hi Payal. There are two types of dependencies: Mandatory & Discretionary. FS can happen for BOTH. The only difference is in case of a mandatory dependency, you cannot pull forward the next task (since it's mandatory to complete task- 1 to start task-2). However, if the dependency is discretionary, you can pull forward task-2 (which is LEAD).
@@PMPwithRay Thanks. Got it. It's clear now.
Hello Sir. I am from India. I had a query. Is maths necessary in my higher secondary education to become a pmp?
Hi Ahbedul, no...maths is not necessary. as long as you have a HS degree its fine. Thanks for asking.
THANK YOU SIR. IT MEANS A LOT.
You are welcome!
Thank you, but the translation in the exam in spanish is bad. In Spanish says: Pregunta 29:
Un equipo de desarrollo de software puede comenzar a escribir el alcance del desarrollo solo 2 meses antes de iniciar el diseño. In your explanation, you use this example but your statment is: a Team developer can begin to write the scope 2 month "AFTER" begin the desing.. in spanish you put: ANTES = before.. so this bad translation confuse ..
in the exam of your course in UDEMY that I bought
Thank you for your feedback. Much appreciated and I will correct the Spanish translation soon.
Thank you for your feedback. Much appreciated and I will correct the Spanish translation soon.
Iiiitgg
Thank you for watching & commenting.