Determine Total Float & Free Float (AKA "Slack") of activities in a network diagram

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  • เผยแพร่เมื่อ 28 ธ.ค. 2014
  • Check out www.engineer4free.com for more free engineering tutorials and math lessons!
    Project Management Tutorial: Determine Total Float & Free Float (AKA "Slack") of activities in a network diagram.
    Please support my work:
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ความคิดเห็น • 212

  • @antonvz19
    @antonvz19 4 ปีที่แล้ว +44

    Attending a very expensive PM course, but hardly any one of the lecturers can compare to your simplistic way of teaching. Thank you very much!!

    • @Engineer4Free
      @Engineer4Free  4 ปีที่แล้ว +2

      Thanks for the feedback, means a lot. Plz share my vids with some peers if it might help them out!

    • @vallekinloch7421
      @vallekinloch7421 3 หลายเดือนก่อน

      aja.. you fell for the course as well, haha.. me too. Did the course.. wasn't what I expected.. but it at least offered a good study guide.. anyways, this video rocks :)

  • @thereisnospoon9059
    @thereisnospoon9059 8 ปีที่แล้ว +100

    Missed my lecture, could spend 1h going through lecture notes or watch your 7:13 video, thanks for saving me time it was very concise and well explained.

    • @Engineer4Free
      @Engineer4Free  8 ปีที่แล้ว +7

      +There is no spoon (Ze Engineer) Thanks for the compliment! You can find the rest of the PM tutorials I made here: www.engineer4free.com/project-management good luck in your class!

  • @tripletalcantara6531
    @tripletalcantara6531 3 ปีที่แล้ว +19

    RECOMMENDED THIS TO MY LECTURER AND HE WAS SHOOK!!!!!! CONGRATS FOR THIS.

    • @Engineer4Free
      @Engineer4Free  3 ปีที่แล้ว +2

      hahaha, you should send them the full course: engineer4free.com/project-management 😜

  • @Nice_nightmare
    @Nice_nightmare 2 ปีที่แล้ว +7

    Thank you so much! im taking project management as an online course and besides the book, nothing else can explain this to me. This along with the other videos were extremely clear, easy to follow, and all around helpful for me to understand. I have to do this kind of problem for my final and i was sure i was going to fail until I watched these videos!

  • @zaradavidsonnotasinglestor3874
    @zaradavidsonnotasinglestor3874 10 หลายเดือนก่อน +4

    8 years later, still very much useful. Thank you.

  • @jayschroniclesinc7827
    @jayschroniclesinc7827 3 ปีที่แล้ว +4

    I wrote nothing on my Continuous Assessment Test today since I missed the class and had no notes..... But as we talk am now a master in Network Diagram even in dreams I can work it out without a Fail... Thanks ... In our local dialect we say Thengió Munó

    • @bonyimakaveli633
      @bonyimakaveli633 2 ปีที่แล้ว

      I knew I would find a Kenyan here💪🏿

  • @kamaleshvasudeva1396
    @kamaleshvasudeva1396 8 ปีที่แล้ว

    You are my online Guru for network diagram.Thanks a lot for very simple explanations.

  • @andualembuyeberhanu3881
    @andualembuyeberhanu3881 ปีที่แล้ว

    I was having trouble with this course, but after watching the videos I understand it so much better. Thank you so much. YOU ARE AWESOME!🙏🙏🙏

  • @tpc8277
    @tpc8277 ปีที่แล้ว +1

    Wow. Thank you soooo much. I was having a hard time understanding and calculating floats while studying for my CAPM exam. Now I can confidently say that I'm ready for any schedule questions!

  • @mariethsiku1076
    @mariethsiku1076 5 ปีที่แล้ว +3

    I was having trouble with my assignment, but after watching the videos I understand it so much better. Thank you so much. YOU ARE AWESOME!

    • @Engineer4Free
      @Engineer4Free  5 ปีที่แล้ว

      Thanks for letting me know! Glad I can help 🙂

  • @haribabujikh
    @haribabujikh 7 ปีที่แล้ว +1

    Awesome explanation. Nobody else have explained this better. It helps a lot. Thanks a ton..

  • @saniisahabba4023
    @saniisahabba4023 7 ปีที่แล้ว +8

    Thanks very much for this explanation i got it really especially the FF calculation

  • @prathamIsOp
    @prathamIsOp ปีที่แล้ว

    Thank you so much sir, i spent 2 hours trying to figure out how to find out Free Float and Total float , i was many YT videos but none of them were explaining using this BOX Diagram method...Finally found your lectore...tysm, you are a life saver

  • @brownieb661
    @brownieb661 6 ปีที่แล้ว +4

    Thank you very much for your videos. I went through all the videos that I could find about this topic and presented by you. I have a firm understanding on this topic now. Again, thanks.

    • @Engineer4Free
      @Engineer4Free  6 ปีที่แล้ว +1

      Awesome thanks for letting me know, I'm really glad to hear it :)

  • @andaroomca
    @andaroomca 7 ปีที่แล้ว +2

    helped a lot, much more clear and easier to understand than what my uni taught me, thanks!

    • @Engineer4Free
      @Engineer4Free  7 ปีที่แล้ว

      Glad it helped! Thanks for commenting!

  • @chuajingyu4324
    @chuajingyu4324 7 ปีที่แล้ว

    Great explanation, and it helps me prepare for my test tomorrow!!!
    Thumbs up!!!!

  • @jenniferokeke4186
    @jenniferokeke4186 3 ปีที่แล้ว

    Really really grateful... I completed my project plan with this lecture.

  • @MrRickykissel
    @MrRickykissel 5 ปีที่แล้ว +2

    Thanks man! Im prepping for the civil PE and this is great stuff!

    • @Engineer4Free
      @Engineer4Free  5 ปีที่แล้ว +2

      Hey you're welcome Richard! Glad you're finding my videos helpful for the PE, hope it goes well! =)

  • @byaruice1
    @byaruice1 2 ปีที่แล้ว

    in times of an urgent assignent due in 2 days, yo
    ur video saved me 3hours of repeating a lecture. god bless you.

  • @maksympt1
    @maksympt1 7 ปีที่แล้ว

    Thanks man! I have a midterm in 2 days and my teacher couldn't explain it like you did in this video.

  • @gtravelpathways
    @gtravelpathways 3 ปีที่แล้ว +3

    Thanks for exampling free float. My textbooks did a horrible job.

  • @rushabhbansode7056
    @rushabhbansode7056 5 ปีที่แล้ว +7

    It really helped a lot, A big thank you!

    • @Engineer4Free
      @Engineer4Free  5 ปีที่แล้ว

      Great, thanks for letting me know!

  • @srilankamoscow
    @srilankamoscow ปีที่แล้ว +1

    astoundingly simple!! and Clarity of different level!!! Hats offf!!

  • @tebogoprince6077
    @tebogoprince6077 5 ปีที่แล้ว +6

    i ddnt understand these things in class but now am familiar with them. thank u very much sir!

    • @Engineer4Free
      @Engineer4Free  5 ปีที่แล้ว +1

      I'm really happy that I can help you out, make sure you check out all my free PM videos at engineer4free.com/project-management if you haven't already :)

  • @savy6969
    @savy6969 หลายเดือนก่อน

    Thank you so much! youre knowlege and video helped me alot to prepare for my upcoming exams. May God Bless you Sir. ❤

  • @mohammadkhashashneh7506
    @mohammadkhashashneh7506 7 ปีที่แล้ว

    best TH-cam channel keep it up, 👍,u helped me alot

  • @manologodino941
    @manologodino941 7 ปีที่แล้ว +3

    Thank you very much for this very clear explanation!! One small question, what happen when you have Start to start or finish to finish linked tasks (even including lead/lag), how to calculate the free float? Using the expression on the video obviously fall into negative values which makes no sense as per the concept of float, but I guess in that case the calculation expression mustchange right?

  • @user679jk7
    @user679jk7 9 หลายเดือนก่อน

    What a fantastic explanation! Thank you so much!

  • @asadullah1336
    @asadullah1336 6 ปีที่แล้ว +1

    Thank you for your informational video, it helped me in my test as i had missed the class of network diagram in my university.

    • @Engineer4Free
      @Engineer4Free  6 ปีที่แล้ว

      Glad I was able to help! If you haven't already, do check out the rest of my PM videos at engineer4free.com/project-management

  • @RealGame101
    @RealGame101 8 ปีที่แล้ว

    Thank you. That was really good. Saved hours!

    • @Engineer4Free
      @Engineer4Free  8 ปีที่แล้ว

      +Ricky Brown Awesome glad to hear it! You can find the rest of the PM tutorials I made here: www.engineer4free.com/project-management ^_^

  • @ababejama7505
    @ababejama7505 7 ปีที่แล้ว

    i love your examples thank you teacher

  • @hajiomer8236
    @hajiomer8236 5 ปีที่แล้ว +1

    Cordially appreciate and thanks to Ian Hayes for making the calculation simple

  • @spearmethrough
    @spearmethrough 5 ปีที่แล้ว +1

    clear and concise, better than my lecturer, thank you

    • @Engineer4Free
      @Engineer4Free  5 ปีที่แล้ว

      Thanks for the comment! =) =)

  • @jacqueshollands5630
    @jacqueshollands5630 9 หลายเดือนก่อน

    Excellent explanation. This really helped me.

  • @adjmalosen6191
    @adjmalosen6191 8 ปีที่แล้ว

    Thank you sir. You're a life saver :)

  • @srahimi3174
    @srahimi3174 3 หลายเดือนก่อน

    Explained really well -- Thank you

  • @nagihanakdeniz6888
    @nagihanakdeniz6888 5 ปีที่แล้ว +1

    I couldn’t understand this topic in school. But after watched your videos I understood perfectly. Thanks a lot..:)

    • @Engineer4Free
      @Engineer4Free  5 ปีที่แล้ว +1

      Awesome glad to hear that I can help you out =) =)

  • @BasEniac
    @BasEniac 5 หลายเดือนก่อน +2

    Thanks to you I passed my complement exam

  • @ReinierRuneScape
    @ReinierRuneScape 6 ปีที่แล้ว

    Jesus christ finally a good tutorial. I liked how you actually did subtract ES and duration instead of just substracting EF.

    • @Engineer4Free
      @Engineer4Free  6 ปีที่แล้ว

      Thanks! Might as well do it correctly :) Make sure you check out the rest of my PM videos at engineer4free.com/project-management if you haven't already. Cheers!

  • @norm5796
    @norm5796 2 หลายเดือนก่อน

    Thank you so much !!! It helps at 2am.

  • @nasrudeenmuhyideen3754
    @nasrudeenmuhyideen3754 3 ปีที่แล้ว +2

    This is fantastic, I find this helpful. Thanks

  • @loupis1
    @loupis1 8 ปีที่แล้ว

    Perfect narration. Wish you taught at my school.

    • @Engineer4Free
      @Engineer4Free  8 ปีที่แล้ว

      +loupis1 Thanks for the compliment! You can find the rest of my PM tutorials here: www.engineer4free.com/project-management :)

  • @lashinirabindrakumar6954
    @lashinirabindrakumar6954 9 ปีที่แล้ว

    very clear explanation. thanxx a lot

  • @pratikvaghasiya1488
    @pratikvaghasiya1488 2 ปีที่แล้ว

    best concept taught in easy way
    thanks

  • @rmnthbhagat
    @rmnthbhagat 2 ปีที่แล้ว

    extremely useful video . thanks a ton

  • @ace_cubes
    @ace_cubes 2 ปีที่แล้ว

    Great job on explaining the difference between TF and FF

  • @rkd19
    @rkd19 9 ปีที่แล้ว

    thanks. good explanation !

  • @siyabkhan7873
    @siyabkhan7873 6 หลายเดือนก่อน

    thanks wallah really appreciate it you explain it in very simple way

  • @nyklunglei6559
    @nyklunglei6559 5 ปีที่แล้ว +1

    Very good explanation. Thank you sir.

  • @poornimavithanage4455
    @poornimavithanage4455 7 ปีที่แล้ว

    thanks! good explanation

  • @sitimadihahtaib670
    @sitimadihahtaib670 3 ปีที่แล้ว

    thank you..very helpful for my study👍

  • @leonfreezy8557
    @leonfreezy8557 3 ปีที่แล้ว +1

    Thanks for making it so concise and easy.

    • @Engineer4Free
      @Engineer4Free  3 ปีที่แล้ว

      Great! Have you checked out the rest of the videos too? engineer4free.com/project-management 👌

    • @leonfreezy8557
      @leonfreezy8557 3 ปีที่แล้ว

      @@Engineer4Free I watched 50 percent of your playlist. Wonderful job. I Have a test coming up. Just revising things😆

  • @entlekutlapye5343
    @entlekutlapye5343 5 ปีที่แล้ว +2

    Thank you so much. I have passed because of you❤

    • @Engineer4Free
      @Engineer4Free  5 ปีที่แล้ว +1

      That's amazing!! So glad to hear it ♥️

  • @ulysseslanducci8708
    @ulysseslanducci8708 2 ปีที่แล้ว

    Valeu, vc salvou dms gringao! tmj BRBR ramon dino olympia 2022 shits crazy ma men

  • @maheshbathala7951
    @maheshbathala7951 3 ปีที่แล้ว +2

    Wow, wonder, we can save the time lot, good and perfect explanation

  • @SayantanM7
    @SayantanM7 8 ปีที่แล้ว +8

    thank you so much.. i think i will pass :D

  • @britney1395
    @britney1395 4 ปีที่แล้ว +8

    Thank you. I'm studying online during quarantine and my teacher just gives us assignments to do and tell us to study online. 😭😔

    • @Engineer4Free
      @Engineer4Free  4 ปีที่แล้ว

      Ooof, well I got Ur back. See all my PM videos at engineer4free.com/project-management please share with your class if you can! 😊😊

  • @dzidzaimangombe
    @dzidzaimangombe ปีที่แล้ว +1

    Well explained, thank you for this

  • @i.Enigma
    @i.Enigma 5 ปีที่แล้ว +1

    Great :)
    Thank you so much!

  • @Mrgaryaaron1
    @Mrgaryaaron1 2 ปีที่แล้ว +1

    Excellent demonstration.

  • @lwazigambushe3402
    @lwazigambushe3402 4 ปีที่แล้ว +1

    Thank you this was very useful 🙏

  • @OzgenurSahin
    @OzgenurSahin 9 ปีที่แล้ว

    ı am really thankfull for you!!!

  • @unfinished6404
    @unfinished6404 2 ปีที่แล้ว

    You r amazing! 👍

  • @ayazjankaka804
    @ayazjankaka804 7 ปีที่แล้ว

    u are amazing sir

  • @Heiress983
    @Heiress983 8 ปีที่แล้ว

    You just saved my graduation! Thank you!

    • @Engineer4Free
      @Engineer4Free  8 ปีที่แล้ว

      +Heiress983 Wow that's good to hear! Glad I could help! If you need any other tutorials you can find the rest that I made here: www.engineer4free.com/project-management Thanks for sharing your success story :)

  • @kaitlynli7538
    @kaitlynli7538 8 ปีที่แล้ว

    thanks!!! very useful and clear!!

    • @Engineer4Free
      @Engineer4Free  8 ปีที่แล้ว

      +Kaitlyn Lai Thanks for the feedback! You can check out all the PM tutorials I made here: www.engineer4free.com/project-management Good luck!

  • @ianhayes9101
    @ianhayes9101 8 ปีที่แล้ว +68

    You make the computation of free float a bit more complicated than it has to be. Instead of subtracting ES and duration, just subtract EF.

    • @AnotherStudent96
      @AnotherStudent96 5 ปีที่แล้ว +2

      I tried, it might make a mistake , look at the F and E activity in the video

    • @mohammedal-mashehdi1271
      @mohammedal-mashehdi1271 5 ปีที่แล้ว +9

      @@AnotherStudent96 no mistakes
      FF activity = ES successor - EF activity

    • @deep77thakkar
      @deep77thakkar 4 ปีที่แล้ว

      Mohammed Al-Mashehdi Can you help for the formulae of independent float?

    • @fatimajahangir9073
      @fatimajahangir9073 3 ปีที่แล้ว

      @@mohammedal-mashehdi1271 Thanks a lot

    • @suzanpathan1603
      @suzanpathan1603 2 ปีที่แล้ว

      @@deep77thakkar whats the formula for independent float?

  • @saikrishpotlapalli5732
    @saikrishpotlapalli5732 4 ปีที่แล้ว +2

    can you please make a video on the independent and interfering float. Thank you

  • @cristianaweschenfelder3483
    @cristianaweschenfelder3483 7 ปีที่แล้ว +1

    Thank you!!!!

  • @ssdfgghsttuujkk5404
    @ssdfgghsttuujkk5404 6 ปีที่แล้ว +1

    great work man

  • @rikishi555
    @rikishi555 5 ปีที่แล้ว +1

    Thank you Sir! ☺️

    • @Engineer4Free
      @Engineer4Free  5 ปีที่แล้ว

      You're welcome Rick, thanks for watching!

  • @ianpatrick23
    @ianpatrick23 3 ปีที่แล้ว +1

    Great explanation!

  • @caveshlin
    @caveshlin 3 ปีที่แล้ว +1

    Great vid! Quick question. If I have three activities with no predecessors, how do I construct the network? Will it have a 'start' node that bursts into the three activities? Or will I just have three separate activities starting points?

    • @Engineer4Free
      @Engineer4Free  3 ปีที่แล้ว +1

      For an Acticity on Node diagram like this one, you will not have a single start node that bursts into three. You will have three seperate initial nodes, all with ES=0. Organize them all on the left hand side, one over the other, and then use the logic from the table of dependencies to draw out their successors. When you do the forward pass, set all three initial activities' ES to zero, and count up as usual. When you do the backward pass, at least one MUST have a LS = 0 . The other two may have LS = 0, or an LS greater than zero.

  • @sumindrabarod8
    @sumindrabarod8 2 ปีที่แล้ว

    Thank you 😊

  • @ShehzadAkhtar2010
    @ShehzadAkhtar2010 8 ปีที่แล้ว

    Superb bro!
    Superb...!
    Thanks a lot...

    • @Engineer4Free
      @Engineer4Free  8 ปีที่แล้ว

      +Shehzad Akhtar ahah thanks for the feedback! You can find all 45 free PM tutorials I made here: www.engineer4free.com/project-management.html Good luck studying!!

  • @jammuKashmirpoint1974
    @jammuKashmirpoint1974 3 หลายเดือนก่อน

    Good information ❤

  • @user-cp6em7eu4e
    @user-cp6em7eu4e 5 ปีที่แล้ว +1

    Thank you 💗

  • @juhip1
    @juhip1 6 ปีที่แล้ว +3

    excellent video - some videos assume the ES of 1st activity as 1 and keep subtracting 1 from every successor activities ES , you have assumed 0 and are not subs 1 in forward pass . What is the correct method?

    • @Engineer4Free
      @Engineer4Free  6 ปีที่แล้ว +1

      Neither method is truly more "correct" than the other, they follow the same logic, but are just shifted from each other by one. If you are in school or studying for a certification, then just follow the method that your instructor is using. The reason that I start with zero stems from the way I label and draw my Gantt charts, you can see in this video: th-cam.com/video/NcOmJSrXYoQ/w-d-xo.html where the column "0-1" represents day one, so therefore 0 represents the start of day one, and 1 represents the end of day one, but also the start of day two. And so on... Hope that helps, thanks for the question!

  • @tumulpurwar8812
    @tumulpurwar8812 6 ปีที่แล้ว

    hahah..cool ..u really deserve appreciation...nicely explained:)

  • @nagarajanvn7655
    @nagarajanvn7655 3 ปีที่แล้ว +1

    very useful. Thank you

  • @muslimgirl7716
    @muslimgirl7716 3 ปีที่แล้ว +1

    Thannnnnkkkkkkkssss 🌸🌸🌸🌸🥺❤❤❤❤ u help me so much in my exam thanksss❤❤❤

  • @melissadun207
    @melissadun207 3 ปีที่แล้ว

    thank you very much!

  • @nourahahmed9841
    @nourahahmed9841 3 ปีที่แล้ว +1

    Thanx it really helpful☺

  • @Bolatova_Maral
    @Bolatova_Maral ปีที่แล้ว

    Thank you)

  • @bulaschannel2892
    @bulaschannel2892 6 ปีที่แล้ว +1

    thanks a lot for sharing. only idiots cant understand. you are a good teacher. I`m having my exams tomorrow. im ready now

  • @mister4972
    @mister4972 6 ปีที่แล้ว +2

    Life saver is all I have to say................

  • @paulaplantita8458
    @paulaplantita8458 6 ปีที่แล้ว

    Awesome video.
    But please please can you upload the calculation for free float with lead-lag reltionships. There's literally nothing out there on the web for this. Thank you!

  • @mohammedtaha3834
    @mohammedtaha3834 4 ปีที่แล้ว +1

    Good explaning thanks

  • @antondirani2519
    @antondirani2519 5 หลายเดือนก่อน

    10/10!

  • @SICKANDTHICK
    @SICKANDTHICK 8 หลายเดือนก่อน

    thanksmate !

  • @zackkhabbazeh9937
    @zackkhabbazeh9937 3 ปีที่แล้ว +1

    thank you

  • @SandeepKaur-ft9pq
    @SandeepKaur-ft9pq 7 ปีที่แล้ว

    thank u so much u saved me.... :-)
    .

    • @Engineer4Free
      @Engineer4Free  7 ปีที่แล้ว

      +Sandeep Kaur your welcome! Thanks for commenting!

  • @usamahassan5763
    @usamahassan5763 3 ปีที่แล้ว +1

    Thanks bro

  • @julesbreugelmans4982
    @julesbreugelmans4982 3 ปีที่แล้ว +1

    thank u

  • @saadhatif9830
    @saadhatif9830 5 ปีที่แล้ว

    Thanks

  • @donaldradaza3525
    @donaldradaza3525 5 ปีที่แล้ว +1

    can you make a sample video on how to make an equipment and manpower utilization schedule? thank you

    • @Engineer4Free
      @Engineer4Free  5 ปีที่แล้ว

      Hey thanks for the suggestion. Probably won't get around to it any time soon as I'm working on a different subject, but I'll keep a note of it for the future

  • @alipirzada2974
    @alipirzada2974 8 ปีที่แล้ว +6

    better then my prof...

    • @Engineer4Free
      @Engineer4Free  8 ปีที่แล้ว +2

      +Ali pirzada Glad to hear its helping!

    • @abedose
      @abedose 6 ปีที่แล้ว

      this is reality for your info :)
      really he doesn't make even half of what you do :(

    • @THENKINGMr
      @THENKINGMr 6 ปีที่แล้ว

      hate to say that,but it is a damn fact

  • @himanshumittal5430
    @himanshumittal5430 6 ปีที่แล้ว

    Plz also make video to find independent float

  • @dowhatwelike37
    @dowhatwelike37 3 ปีที่แล้ว +1

    Which app do you use to draw these tables? sir

    • @Engineer4Free
      @Engineer4Free  3 ปีที่แล้ว +1

      The full list of hardware and software that I use to make the videos is here: engineer4free.com/tools

  • @animecon15
    @animecon15 3 ปีที่แล้ว +1

    King 🤴