Glad to hear it! Plenty more PM videos on the channel, or also engineer4free.com/project-management ☺️

That's awesome, I'm glad to hear it helped, and thanks a lot for the really kind words!!!

Thanks for this comment bro, cheers!!

I was watching your video as I was preparing for my PM final today. Yep my professor was mean enough to get us a similar complicated network and yep I totally nailed that shit! Many thanks!

hahaha word, always expect and be prepared for the worst... glad this video helped you crush it!!

hahahaha !!!! SO DAMMMMMNNNNNNN TTTTTRRRUUUUEEEEE !!!!!!

@@skanderhaffar6958 I'm going to accomplish that feat tomorrow. Wish me luck! :)

Thanks for the awesome comment Febe!!! Glad I can help =)

haha yeah these ones are weird, but very likely to show up on exams because of their weirdness. Glad you like it, it's video #22 out of 46, do check out the rest at engineer4free.com/project-management or just the youtube playlist kzfaq.info/sun/PLOAuB8dR35oeyKU0ojIxD8Muf6Mwc8ugW =)

+Joshua Niranjan That's awesome!!! Thanks for letting me know, I always like to hear success stories :)

Awesome glad to hear it!! If you want some more detailed videos on FS, SS, SF, FF then check out videos 16 - 22 here: engineer4free.com/project-management =) =)

Tom Pope That's awesome to hear! You can find all of the PM videos that I made here: engineer4free.com/project-management Good luck on your certification!

Haha, sorry to hear that Alex but glad I can help =)

Thanks Eleni, hope the exam goes well!!

Lol. . Engineer4free always do the best

Thanks Aamir! Check out engineer4free.com/project-management and you're life will be even more complete =)

Definitely. I've already subscribed to this channel. Hope to see great content in future too.

No, it is not that if there is no lag we simply add all the activities to get critical path and duration of project. We must follow the pattern of network diagram and work accordingly with it to get critical path and total project duration. And type of relationship given to activity must be taken in consideration.

@@tarashankarsharma3372 I see. I tried an AOA network for a different table whlch helped me understand the concept more. Thanks for your reply. Have a great day!

Thanks for all the good questions and answers to both of you 😊

kzfaq.info/get/bejne/p8t7frpnkriRhYk.html Can you please subscribe my channel.

Thanks Kareem!! =)

Mission accomplished! The full playlist can be found at engineer4free.com/project-management if you're interested in checking it out!

Thanks Faran!!!

❤️❤️

Happy that I was able to help!

Hey Sean, I recommend taking a step back then. Definitely watch videos 4-9 here: engineer4free.com/project-management and if you have time (like 2 hours or so) then I recommend just watching everything up to the video that we're commenting on (which is video 22). Going through them all will fill you in with bits of insight here and there and will just get you some more practice to get comfortable with the topic. Cheers let me know how your progress goes!

Hi I really like to know the answer to my query above. Appreciate if you or anyone can help with my doubt above regarding critical path? Basically, how you determine the critical path from a network diagram which has various types of dependencies and lags? Best Rgds Thanks

Did you get the answer for your question please, if you did, can you share it. Thank you.

You're welcome!! 🙂

Hey you're welcome, thanks for watching =)

Glad you like it, thanks for watching!!

Thanks for the suggestion

Glad to hear it!! The full playlist is here too: engineer4free.com/project-management =)

You can only read the ES and EF values off the Gantt chart. The numbers that each activity on the Gantt chart start and stop on are the ES and EF values. You could use them to populate the network diagram and skip the forward pass, but you will still need to do the backward pass. I recommend drawing the gantt chart and network diagram, and doing the actual forward pass, and then quickly checking the ES/EF values against the gantt chart to make sure that it looks like you have no errors. That's more valuable to you then using then using the Gantt chart to skip a step.

Such is the life. Thanks for watching!!

Thanks, hope you found it helpful

You're welcome Dheeraj! =)

Happy to help 🙂🙂

+Rita Indah Lestari In that case, the duration of A, B, and M are all significant too. For the A-M relationship, you can first find the EF of M, then subtract the duration to find the ES of M. Then you need to check the B-M relationship. You can first find the ES of M based on E. You would then compare the ES of M given by A and then also as given by B, and chose the larger value. You must chose the larger value in the forward pass because in order to satisfy both predecessors. As you can see, the logic AND the durations of all activities in question would affect the outcome. Hope that helps!

See videos 16-22 here: engineer4free.com/project-management =)

You're welcome!!! (=

Glad t hear it! Thanks for watching and commenting :)

+Fachri Eri Reza Thanks for the feedback! You can check out all 45 PM tutorials I made here: www.engineer4free.com/project-management.html :)

You're welcome!!

+Sohaib Iqbal Glad to hear it, that's awesome!!!!

Hi, sorry for any confusion brought about by the naming of each style of diagram. There are two types of network diagrams: Activity on Node (AON) and Activity on Arrow (AOA). In these videos I usually refer to AON as PDM, and AOA as CPM. That's local lingo for me that I originally learned, but you are actually better to use AON and AOA, it's more clear.

@@Engineer4Free Thanks for the clarification

Glad I can help! :)

Yes. If you find more than one, write them all down.

@@Engineer4Free okay thanks a lot sir :)

+Zakiya Mitchell haha glad to hear it's helping! You can check out the rest of my PM tutorials here: www.engineer4free.com/project-management

Thanks Lalit.

Thanks!! 😊

Awesome, hope it went well!!!

You're welcome Abdo!

sagittariansrock Hey I see what's confusing you. Take a look at the numbering for the days on the x axis. I have labelled it from 0 to 14. The 0 represents the start of day one. The 1 represents the end of day one, and also the beginning of day two. The 2 represents the end of day two, and also the beginning of day three and so on. Take a look at Activities E and F first for example. We generally assume that people work regular hours, so like 8am-5pm. So first, the 3 on the x axis represents the end of day three (lets say 5pm - the end of the working day) and you can see this is where activity E wraps up (activity E is one day long so it starts at 8am and ends at 5pm on a single day). Activity F starts right on the line for 3 but its not going to start at 5pm and work through the night. Activity F will start at 8am the next morning, so the 3 on the x axis also represents the beginning of day four. I like to only think of the numbers on the axis as the ends of days (when I look at the 3 the first thing that comes to my head is that 3 on the x axis represents the end of day 3). Another way to wrap your head around it is to acknowledge that the columns that form vertically are single days. The space between 2 and 3 on the x axis represents day 3, as seen by how activity E fits only between 2 and 3 and is one day long. To go back to your original question, take a closer look at the Gantt chart. Activity B is actually being performed during days six and seven. Even though it starts on the 5 and ends on the 7, you should now be able to see that that means it starts at the beginning of day six and goes until the end of day 7, which is two days in duration. I hope this helps, let me know if you still have questions because it can be a bit confusing to first wrap your head around the labeling.

Engineer4Free I got it now. It seems that there are two parallel but equally accurate ways to depict this, and I have been using the start on day 1, add duration - 1 system for my exam. Thanks for the very clear explanation :)

I've got a list of all the hardware and software here: engineer4free.com/tools =)

❤️

Glad I could help 🤜🤛

Thanks, glad to hear it! =)

Glad to help :)

Hmmm, should not be negative, sounds like you have a simple math error somewhere

Critical path is formed by the sequence of activities that have LS = ES (LF = EF) that go from ES = 0 to EF = max EF. This can be read off the diagram once you have finished the forward and backward pass.

=)

On the forward pass, consider what the ES of the successor would be from each predecessor independently, factoring in lag if applicable and then take the largest ES of the scenarios as actual ES of the successor. For the backward pass, assess the LF of a predecessor for each of it's successors independently, taking any lag into consideration and then take the smallest LF of the scenarios as actual LF of the predecessor. You can find the ES or LF of one activity caused by a related activity whether or not lag is present, so if some relationships have lag and others don't, it won't affect the way that we approach the problem. Does that clear it up?

Thank you for the response.

Glad you liked it :)

I've just got a few videos on float, they are videos 13-15 here: engineer4free.com/project-management

Hey Ekong, yeah check out video 15 here engineer4free.com/project-management

Great, thanks a lot for the link. Will get busy, cheers.