For my study style, i like concised and simple examples + explanations, you did just that in these tutorials. Tomorrow i have project management test and i understand everything you taught in this lesson. A bunch of thanks and kudos to you sir.
Excellent video!!!! Just wanted to add. You can always calculate the amount of time you can delay an activity by using the following formula: Late Start - Early Start or Late Finish - Early Finish. So for example on Activity B, LS-ES = 5-5 = 0. This means that here you have 0 float or slack and therefore you cannot delay this activity. Pretty much all activities part of the Critical Path has Zero float. In contrast to Activity C, LS-ES = 7-5 = 2. This means you have a float or slack of 2 and you actually can delay this activity by 2 days and it won't impact your total project duration.
Hey thanks for the contribution Edward! Yup you're right all activities on the critical path have zero float/slack. This video is an earlier one in a greater playlist, I get into float/slack in videos 13-15 here: engineer4free.com/project-management =)
You made it so easy and simple to understand... trust me my professor made this topic hell for us... a big thanks to you...wish my professor starts watching your video and take some teaching lessons..
Oh my god i love you!! Seriously thank you so much i've been staring at the slide for hours and i couldnt understand anything but after watching your video you made it 10 times easier, thank you so much
Professor= Egyptian mathematics Enginner4free= counting numbers But it is a same concept 😂 Brother your teaching skills are just tooo good than bald professors 👍
Thanks Lentie! I know the feeling, so I do try to be super clear 😊😊. Do check out the rest of my PM videos if you haven't already here: engineer4free.com/project-management you might like them
This is too easy yet i found it tricky to get my head around, some text books say to add 1 onto each node during the forward pass and minus 1 during the back pass. this is why i was confused but ill just do it this way it makes more sense
If you have more than one terminal activity then take the highest EF of all terminal activities as the end date of the project. Bring that value into the LF of all terminal activities, and then proceed with the backwards pass as usual 🤜🤛
+Yusuf Katalony ahahaha thanks :). If you're looking for any more PM tutorials, you can find the rest of mine here! www.engineer4free.com/project-management
+Ndeh Stanley Thanks for the comment! You can find the rest of the PM tutorials I made here: www.engineer4free.com/project-management Good luck studying!
Problem! I'm doing PMP and we are taught to put 1 in the early start of the first activity /activities and put early finish value as , early start + duration -1. So my boxes come essentially the same in all finish values and one incremented in start values. In question papers, when asked the ES or LS of any activity, your values will be wrong. What's this other method. Explain please
Hey Thusitha. Both methods are correct. If you're going to be tested starting with an initial ES of 1, then practice with that numbering system. If you're curious as to why there's two numbering systems, then continue reading. My network diagram stars with a zero because my Gantt chart starts with a zero. Watch this video in how I draw Gantt charts: www.engineer4free.com/4/how-to-draw-a-gantt-chart . Notice how my Gantt chart vertical starts counting from zero? I do it that way, because it's more mathematically sensible. Axis normally start at 0 in most maths, but to each their own. So anyways, notice that in that video, 0 represents the beginning of day one. 1 represents the end of day one, and the beginning of day two. 2 represents the end of day two, and beginning of day three, and so on. 0, 1, 2, are just labels associated with real times (and usually two different times to be slightly confusing) but if you're looking at the Gantt chart, it should be clear that each "column" is a day, and the lines (0,1,2,3...) are the points between the days. Aaaany how, I was saying that the numbers 0,1,2,3 are just labels, and one can pick any label to describe a certain time. PMP chooses 1,2,3 where I choose 0,1,2. it's why you're taught to have a -1 in your formula, but overall the logic is exactly the same, and the projects as described by a table of dependencies will be exactly the same, whether we call the end of day one, 1 or 2. Some institutions teach it my way, some teach it the other way. Doesn't really matter, but just follow the convention that your going to be tested on, and understand that some people are going to be following a convention that appears to be off by one. Hope that helps. 🤜🤛
hi! thanks for your videos!! they are REALLY HELPFUL! but i still can't wrap my head around the logic of picking the smaller number for the late finish of the previous event ._.
I am aware of this. The method that I use was the method that was taught to me when I initially studied this in university. If you are pursuing certification, it's necessary to follow the convention used in the program, but at the end of the day, it's just a convention, and the logic is what is important. Both conventions use the same logic despite having a different initial starting number.
You explained this better than my textbook, Pearson online learning and my professor combined. Thanks. Amazing how people leave this out when showing their work. Like how else am i supposed to figure it out?!!
Pretty much just so you don't violate the successor with the smaller ES. If you brought in the larger one, the EF of the predecessor and the successor with smaller ES would not agree. It turns out bringing in the smaller ES always satisfies the big picture. That's the gist of it, make sense?
I don’t know. Typically the relationships are called Finish to Start, Start to Finish, Finish to Finish, or Start to Start. Lead/Lag may be an aspect of any of them, but I have never hear of a Lag and Lag relationship, sounds like a typo. Check out videos 16-22 here: engineer4free.com/project-management 🙂
Yes. Don't be fooled by the choice of names of activities and assume that because the letter A comes first in the alphabet that an activity named "A" must come first. It does in this case, but the ultimate factor in determining the which is the initial activity in the project is communicated to us in the table of dependencies as the activity that has no predecessor. If this was a construction project, the activities wouldn't be named A, B, C, etc... they could be Excavate, Pour Concrete, Framing, Roofing, etc... It is possible for a project to have more than one initial activity (with no predecessors) and/or more than one terminal activity (with no successors), and in that case multiple initial activities all have ES = 0, and for multiple terminal activities you find the largest EF of them and set that as the LF of all terminal activities to begin the backward pass. Hope that clears it up!
Engineer4Free thank you for the reply. I have a case that project starts from A and B but they both have predecessors. That's where I got lost. I really appreciate your help
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i got my finals tomorrow, i finally understand this, your voice has also reduced all stress levels, im in love
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HA! Gaay!
Me too. Awesome!!!
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Same here this was really helpful thank you
this was way more helpful than my professor!
thank you so much!
Happy to hear its helping :)
me either
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same. thankyou
this was way more helpful than my lectures in uni. thank you kind sir!
Glad to hear it, thanks for letting me know!
For my study style, i like concised and simple examples + explanations, you did just that in these tutorials. Tomorrow i have project management test and i understand everything you taught in this lesson. A bunch of thanks and kudos to you sir.
Thanks for the feedback, hope the exam goes well!!!
God bless you bro. You are the reason I'll pass this course. Thank you so so much.
Glad I can help =) thanks for the comment!
i am in love with your teaching style. and your editing skills. and your voice. :)
wins all around! glad you like it :)
I don't know why they don't teach it like this in school...they have to make as difficult as possible in the textbook...Thank you for making it easy!
Thanks for the feedback. This stuff really isn't that complicated, it just gets complicated for no reason a lot of the time in teaching =/
Great and excellent work in CPM. After had searched tons of videos, finally came across your video and you nailed it. Thanks from Pakistan.
Once again, glad you found the videos Syed 🙂🙂
The explanation is straight to the point and the boxes improve my understanding towards this topic. Thanks love!
Thanks Kausalyaa!! Do check out the rest of the vids at engineer4free.com/project-management if you haven't already 🙂🙂
Excellent video!!!! Just wanted to add. You can always calculate the amount of time you can delay an activity by using the following formula: Late Start - Early Start or Late Finish - Early Finish. So for example on Activity B, LS-ES = 5-5 = 0. This means that here you have 0 float or slack and therefore you cannot delay this activity. Pretty much all activities part of the Critical Path has Zero float. In contrast to Activity C, LS-ES = 7-5 = 2. This means you have a float or slack of 2 and you actually can delay this activity by 2 days and it won't impact your total project duration.
Hey thanks for the contribution Edward! Yup you're right all activities on the critical path have zero float/slack. This video is an earlier one in a greater playlist, I get into float/slack in videos 13-15 here: engineer4free.com/project-management =)
Thank you for taking the time to upload these videos, they've helped me tremendously!
Glad to hear it! Thanks for watching =)
U saved my life. I have a cpm exam today and instantly got it. My lecturer suckssss.THANK YOU!!!!!!!
Awesomeeee! CPM can be unnecessarily complicated if not explained right. Glad you found the explanation in the video easy to understand!!
You are a life saver! this was way more helpful than the power point slides my SDSU professor placed for us. Thanks a bunch!!!
Glad I could help! You should check out the rest of the PM videos i did at engineer4free.com/project-management =)
Thanks mate. You just saved a student's life here.
did you get your degree?
You made it so easy and simple to understand... trust me my professor made this topic hell for us... a big thanks to you...wish my professor starts watching your video and take some teaching lessons..
hahaha ^_^
Oh my god i love you!!
Seriously thank you so much i've been staring at the slide for hours and i couldnt understand anything but after watching your video you made it 10 times easier, thank you so much
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I literally just passed the exam with only watch this 😭😭😭 thank you
Glad I could help 😊😊
Thanks very much for this, I was mad confused on this!
thank you so much sir..you solve my very serious problem.Thankxx again.you are a great professor.....
Happy to help, thanks for watching! 👍👍
Wow this is the best explanation of this lesson I have ever heard! Thanks a lot!!
Thanks!!! Really happy to hear that =) =)
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Thank god! i lived in this beautiful years of education. prbbly better in the future but anyways im good now. Thanks PROF. n youtube
haha glad to be of service :p
thank you, much more helpfull an easier to understand than my lecturer
Glad that I can help =)
2hours lecture cramp into 5minutes, excellent.
=)
What 😱😱😱 in just few minutes you made me understand something I’m trying to understand weeks ago...
haha that's how we do it engineer4free style :p
Thank you very much. I get a exam tomorrow. explain very carefully!
THANK YOU THANK YOU! So easy to understand and self explanatory. can't thank you enough.
your teaching style is amazing....so perfect
Thanks IPappi =D
Exactly what I needed in 2 videos!!!
Awesome glad to hear it!!!
Professor= Egyptian mathematics
Enginner4free= counting numbers
But it is a same concept 😂
Brother your teaching skills are just tooo good than bald professors 👍
Thank u so much for this end time preparation for my exam , its really helped me alot..
Glad I could help. Thanks for watching!!! 😁
Dude honestly God bless you for this 😭❤
🙌💕
Absolute Hero man Thank you.
You're welcome, thanks for watching! Check ob the rest of the vids at too at engineer4free.com/project-management if you have some time 👌
You are so articulate
Thank you because i had someone explain this to me and i felt like a dumbass
Thanks Lentie! I know the feeling, so I do try to be super clear 😊😊. Do check out the rest of my PM videos if you haven't already here: engineer4free.com/project-management you might like them
This is short and to the point thanks!!
Thanks for watching, glad you liked it!
It was very helpful. Thanks a lot.
Glad you liked it! The full playlist is here: engineer4free.com/project-management =)
so helpful compared to my professor!!!!!!! Thank you every much
Glad I can help!! Do check out the rest of the vids at engineer4free.com/project-management 😊😊
you just saved my life, Thank you from my heart!!
You're welcome!!!
Thank you very much, your tutorials helped a lot
Great!!! 👌
This is too easy yet i found it tricky to get my head around, some text books say to add 1 onto each node during the forward pass and minus 1 during the back pass. this is why i was confused but ill just do it this way it makes more sense
You are the best bro!
OMG! MY PROFESSOR MAKES THIS SO HARD TO UNDERSTAND. THANK U FOR YOUR INSTRUCTION!
GLAD I CAN HELP YOU. THIS STUFF DOESN'T NEED TO BE COMPLICATED SO GLAD I CAN MAKE IT EASY FOR YOU. LOLCAPS
Thanks, a lot. Very easy way compared to my lecturer.....
Awesome glad to hear I can help =)
thank you so much,this helped me a lot am busy preparing for my exams.
Glad it helped! If you haven't already, check out the rest of my PM tutorials here: engineer4free.com/project-management :)
I'm studying for the PE and the reference book just glides over this topic. This explains it perfectly! Thanks!
Glad to hear that this is more helpful! Thanks for watching!
Clear and brief explanation.
🙏
🙏
Thank you so much... This is really helpful
Simple, easy. Thanks.
You're welcome!! =)
Wow very helpful for my study!
Awesome! Make sure you check out all my PM videos at engineer4free.com/project-management
Thank you for your video for making it really simple. I was struggling a little :)
Hey Abraham glad I could help! If you haven't already, check out all the PM videos I did at engineer4free.com/project-management =)
nice and easy to understand..thank you
thanks for a job well done. it was helpful than my leacture
Thanks ... much helpful for me
You're welcome, again! 😁
thx man! better than my class tutor.
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This was so helpful! Thank you so much.
Awesome! Thanks for letting me know =)
Engineer4Free Is it possible to have negative LS?
Awesome again! Thank you.
You’re welcome!! Seems like you found the entire playlist! But in case not you can check it out here: engineer4free.com/project-management ✌️
Thank you, these videos have been very helpful. what do I do if the network doesn't close?
If you have more than one terminal activity then take the highest EF of all terminal activities as the end date of the project. Bring that value into the LF of all terminal activities, and then proceed with the backwards pass as usual 🤜🤛
Thank you good sir...well explained.everything .🤟🤟😃.amazing sir.
You're welcome, thanks for watching! ☺️
you are a KING
+Yusuf Katalony ahahaha thanks :). If you're looking for any more PM tutorials, you can find the rest of mine here! www.engineer4free.com/project-management
Thank you!
You're welcome!
Dude you’re so nice
Haha thanks ☺️
Nice video.Really helpful
Really helpful thank u
Helped me a lot :-)
Glad to hear it!! 😊
Very helpful. Thank you!!!
Thanks for watching Sam!!!
great video
Thanks! ☺️
This is very helpful. Thanks
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Thank you sir, this was very helpful!
Glad to hear it, thanks for letting me know!
Thank you 💙💙💙💙💙💙
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Very helpful.
Thank you.
+Ndeh Stanley Thanks for the comment! You can find the rest of the PM tutorials I made here: www.engineer4free.com/project-management Good luck studying!
nice and easily understand
great tutorial
Thanks Antonella
Problem! I'm doing PMP and we are taught to put 1 in the early start of the first activity /activities and put early finish value as , early start + duration -1. So my boxes come essentially the same in all finish values and one incremented in start values. In question papers, when asked the ES or LS of any activity, your values will be wrong. What's this other method. Explain please
Hey Thusitha. Both methods are correct. If you're going to be tested starting with an initial ES of 1, then practice with that numbering system. If you're curious as to why there's two numbering systems, then continue reading. My network diagram stars with a zero because my Gantt chart starts with a zero. Watch this video in how I draw Gantt charts: www.engineer4free.com/4/how-to-draw-a-gantt-chart . Notice how my Gantt chart vertical starts counting from zero? I do it that way, because it's more mathematically sensible. Axis normally start at 0 in most maths, but to each their own. So anyways, notice that in that video, 0 represents the beginning of day one. 1 represents the end of day one, and the beginning of day two. 2 represents the end of day two, and beginning of day three, and so on. 0, 1, 2, are just labels associated with real times (and usually two different times to be slightly confusing) but if you're looking at the Gantt chart, it should be clear that each "column" is a day, and the lines (0,1,2,3...) are the points between the days. Aaaany how, I was saying that the numbers 0,1,2,3 are just labels, and one can pick any label to describe a certain time. PMP chooses 1,2,3 where I choose 0,1,2. it's why you're taught to have a -1 in your formula, but overall the logic is exactly the same, and the projects as described by a table of dependencies will be exactly the same, whether we call the end of day one, 1 or 2. Some institutions teach it my way, some teach it the other way. Doesn't really matter, but just follow the convention that your going to be tested on, and understand that some people are going to be following a convention that appears to be off by one. Hope that helps. 🤜🤛
@@Engineer4Free Thank you for the great detailed explanation. You're so inspiring. It's now clear to me like never before
youre awesome!
Thanks Emilia!!
Thank youuuu!!!
Ja welcome!!
hi! thanks for your videos!! they are REALLY HELPFUL! but i still can't wrap my head around the logic of picking the smaller number for the late finish of the previous event ._.
You have to put -1 to each activity in the pmi certificate
I am aware of this. The method that I use was the method that was taught to me when I initially studied this in university. If you are pursuing certification, it's necessary to follow the convention used in the program, but at the end of the day, it's just a convention, and the logic is what is important. Both conventions use the same logic despite having a different initial starting number.
Thanks...
You’re welcome!!
Nice and concise... Thumbs up
Thanks!
Thank you♥️
You explained this better than my textbook, Pearson online learning and my professor combined. Thanks. Amazing how people leave this out when showing their work. Like how else am i supposed to figure it out?!!
Wow thanks for the compliment! Glad to hear that my videos are helping so much! =)
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You're welcomeeeeeeeeeeeee glad to hear it 🙂
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Thanks a lot
saved mai life
I gochu
very helpful
Thanks Mohammed, do tell some friends/colleagues that could also use it =)
When you do the backwards pass, why do you use the smaller number? What's the logic behind this?
Pretty much just so you don't violate the successor with the smaller ES. If you brought in the larger one, the EF of the predecessor and the successor with smaller ES would not agree. It turns out bringing in the smaller ES always satisfies the big picture. That's the gist of it, make sense?
Dude, thank you so much!!
great tutorial wow
Thanks!
Thanks sooooo much
You're welcome sooooo much ^_^
THANK YOU VERY MUCH!!!!!!
Your welcome! :D
Why don't you add one day in the forward pass? How can you finish one activity and start the next activity on the same day?
ruclips.net/video/eZgv1BW1lCU/видео.html This is the correct method as per PMI PMBOK
What is Lag and Lag relationship?
I don’t know. Typically the relationships are called Finish to Start, Start to Finish, Finish to Finish, or Start to Start. Lead/Lag may be an aspect of any of them, but I have never hear of a Lag and Lag relationship, sounds like a typo. Check out videos 16-22 here: engineer4free.com/project-management 🙂
What if A has a predecessor? Would diagram start from a different activity?
Yes. Don't be fooled by the choice of names of activities and assume that because the letter A comes first in the alphabet that an activity named "A" must come first. It does in this case, but the ultimate factor in determining the which is the initial activity in the project is communicated to us in the table of dependencies as the activity that has no predecessor. If this was a construction project, the activities wouldn't be named A, B, C, etc... they could be Excavate, Pour Concrete, Framing, Roofing, etc... It is possible for a project to have more than one initial activity (with no predecessors) and/or more than one terminal activity (with no successors), and in that case multiple initial activities all have ES = 0, and for multiple terminal activities you find the largest EF of them and set that as the LF of all terminal activities to begin the backward pass. Hope that clears it up!
Engineer4Free thank you for the reply. I have a case that project starts from A and B but they both have predecessors. That's where I got lost. I really appreciate your help
how do you determine the bottleneck from a PDM network diagram?