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

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  • Опубліковано 4 лис 2024

КОМЕНТАРІ • 216

  • @antonvz19
    @antonvz19 5 років тому +54

    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  5 років тому +2

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

    • @vallekinloch7421
      @vallekinloch7421 7 місяців тому

      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 років тому +103

    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 років тому +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!

  • @zaradavidsonnotasinglestor3874

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

  • @tripletalcantara6531
    @tripletalcantara6531 3 роки тому +22

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

    • @Engineer4Free
      @Engineer4Free  3 роки тому +2

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

  • @Nice_nightmare
    @Nice_nightmare 3 роки тому +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!

  • @asaamhussein4913
    @asaamhussein4913 14 днів тому

    i attend uni for my MSc in PM and I swear to God sometimes I feel lost and don't know what they're talking about- I luckily found this channel and its easy to understand thank you so MUCH I shared it with my friends :D

  • @jayschroniclesinc7827
    @jayschroniclesinc7827 3 роки тому +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

  • @prathamIsOp
    @prathamIsOp Рік тому

    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

  • @byaruice1
    @byaruice1 2 роки тому

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

  • @mariethsiku1076
    @mariethsiku1076 5 років тому +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 років тому

      Thanks for letting me know! Glad I can help 🙂

  • @gtravelpathways
    @gtravelpathways 3 роки тому +3

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

  • @srilankamoscow
    @srilankamoscow Рік тому +1

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

  • @ReinierRuneScape
    @ReinierRuneScape 7 років тому

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

    • @Engineer4Free
      @Engineer4Free  7 років тому

      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!

  • @tebogoprince6077
    @tebogoprince6077 6 років тому +6

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

    • @Engineer4Free
      @Engineer4Free  6 років тому +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 :)

  • @Andualemberhanu1988
    @Andualemberhanu1988 Рік тому

    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!🙏🙏🙏

  • @BasEniac
    @BasEniac 8 місяців тому +2

    Thanks to you I passed my complement exam

  • @savy6969
    @savy6969 5 місяців тому

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

  • @tpc8277
    @tpc8277 2 роки тому +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!

  • @andaroomca
    @andaroomca 7 років тому +2

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

    • @Engineer4Free
      @Engineer4Free  7 років тому

      Glad it helped! Thanks for commenting!

  • @brownieb661
    @brownieb661 6 років тому +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 років тому +1

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

  • @kamaleshvasudeva1396
    @kamaleshvasudeva1396 8 років тому

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

  • @aphelelemakade9569
    @aphelelemakade9569 2 місяці тому

    You Have Helped Me understand Network Diagram❤. Thank You Very Much And God Bless You 🙏

  • @nagihanakdeniz6888
    @nagihanakdeniz6888 5 років тому +1

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

    • @Engineer4Free
      @Engineer4Free  5 років тому +1

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

  • @spearmethrough
    @spearmethrough 5 років тому +1

    clear and concise, better than my lecturer, thank you

  • @asadullah1336
    @asadullah1336 6 років тому +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 років тому

      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

  • @MrRickykissel
    @MrRickykissel 5 років тому +2

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

    • @Engineer4Free
      @Engineer4Free  5 років тому +2

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

  • @norm5796
    @norm5796 6 місяців тому

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

  • @haribabujikh
    @haribabujikh 7 років тому +1

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

  • @jenniferokeke4186
    @jenniferokeke4186 3 роки тому

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

  • @loupis1
    @loupis1 8 років тому

    Perfect narration. Wish you taught at my school.

    • @Engineer4Free
      @Engineer4Free  8 років тому

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

  • @leonfreezy8557
    @leonfreezy8557 4 роки тому +1

    Thanks for making it so concise and easy.

    • @Engineer4Free
      @Engineer4Free  4 роки тому

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

    • @leonfreezy8557
      @leonfreezy8557 4 роки тому

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

  • @saniisahabba4023
    @saniisahabba4023 8 років тому +8

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

  • @SystemsProjectEngineer
    @SystemsProjectEngineer 2 роки тому +1

    Excellent demonstration.

  • @jacqueshollands5630
    @jacqueshollands5630 Рік тому

    Excellent explanation. This really helped me.

  • @ianhayes9101
    @ianhayes9101 8 років тому +70

    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 років тому +3

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

    • @mohammedal-mashehdi1271
      @mohammedal-mashehdi1271 5 років тому +11

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

    • @deep77thakkar
      @deep77thakkar 4 роки тому +1

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

    • @fatimajahangir9073
      @fatimajahangir9073 4 роки тому

      @@mohammedal-mashehdi1271 Thanks a lot

    • @suzanpathan1603
      @suzanpathan1603 2 роки тому

      @@deep77thakkar whats the formula for independent float?

  • @chuajingyu4324
    @chuajingyu4324 8 років тому

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

  • @ace_cubes
    @ace_cubes 2 роки тому

    Great job on explaining the difference between TF and FF

  • @maksympt1
    @maksympt1 7 років тому

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

  • @siyabkhan7873
    @siyabkhan7873 10 місяців тому

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

  • @srahimi3174
    @srahimi3174 7 місяців тому

    Explained really well -- Thank you

  • @entlekutlapye5343
    @entlekutlapye5343 5 років тому +2

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

    • @Engineer4Free
      @Engineer4Free  5 років тому +1

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

  • @dzidzaimangombe
    @dzidzaimangombe Рік тому +1

    Well explained, thank you for this

  • @rushabhbansode7056
    @rushabhbansode7056 6 років тому +7

    It really helped a lot, A big thank you!

  • @Jamiewithtoast
    @Jamiewithtoast Рік тому

    so the critical path is A, B, D, C, E, G, F, H? Or A, B, D, G, H? Surely you would miss completing C, E and F if this is the case?

  • @nasrudeenmuhyideen3754
    @nasrudeenmuhyideen3754 3 роки тому +2

    This is fantastic, I find this helpful. Thanks

  • @britney1395
    @britney1395 4 роки тому +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 роки тому

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

  • @Heiress983
    @Heiress983 9 років тому

    You just saved my graduation! Thank you!

    • @Engineer4Free
      @Engineer4Free  9 років тому

      +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 :)

  • @bulaschannel2892
    @bulaschannel2892 7 років тому +1

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

  • @muslimgirl7716
    @muslimgirl7716 3 роки тому +1

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

  • @mohammadkhashashneh7506
    @mohammadkhashashneh7506 7 років тому

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

  • @maheshbathala7951
    @maheshbathala7951 3 роки тому +2

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

  • @pratikvaghasiya1488
    @pratikvaghasiya1488 3 роки тому

    best concept taught in easy way
    thanks

  • @hajiomer8236
    @hajiomer8236 5 років тому +1

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

  • @user679jk7
    @user679jk7 Рік тому

    What a fantastic explanation! Thank you so much!

  • @manologodino941
    @manologodino941 7 років тому +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?

  • @ulysseslanducci8708
    @ulysseslanducci8708 2 роки тому

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

  • @ianpatrick23
    @ianpatrick23 4 роки тому +1

    Great explanation!

  • @sitimadihahtaib670
    @sitimadihahtaib670 3 роки тому

    thank you..very helpful for my study👍

  • @nyklunglei6559
    @nyklunglei6559 6 років тому +1

    Very good explanation. Thank you sir.

  • @lwazigambushe3402
    @lwazigambushe3402 4 роки тому +1

    Thank you this was very useful 🙏

  • @juhip1
    @juhip1 6 років тому +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 років тому +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: ua-cam.com/video/NcOmJSrXYoQ/v-deo.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!

  • @vanlillbonnie5750
    @vanlillbonnie5750 4 роки тому +1

    why successor's ES is on
    the same date of predecessor's EF? Should ES date of successor add one day more
    from EF of predecessor’s? You must wait for previous activity to finish and
    start ES on next activity. It doesn’t mean scenes when you put them on the same
    date.

    • @Engineer4Free
      @Engineer4Free  4 роки тому

      It comes from how the giant chart is drawn. Watch this video first: www.engineer4free.com/4/how-to-draw-a-gantt-chart You can see that 0 represents the beginning of the first day, 1 represents the end of the first day AND the beginning of the second day. 2 represents the end of the second day AND the beginning of the third day. 3 represents the end of the third day AND the beginning of the fourth day. And so on. So in that video, Activity A has a duration of two, so it starts at the beginning of the first day (0) and ends at the end of the second day (2), and Activity B then starts on the beginning of the third day, which is also marked by 2. On the network diagram, these come across as the activity’s Early Starts. Hope that helps clarify it for you!

  • @rmnthbhagat
    @rmnthbhagat 2 роки тому

    extremely useful video . thanks a ton

  • @nourahahmed9841
    @nourahahmed9841 3 роки тому +1

    Thanx it really helpful☺

  • @RealGame101
    @RealGame101 8 років тому

    Thank you. That was really good. Saved hours!

    • @Engineer4Free
      @Engineer4Free  8 років тому

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

  • @jammuKashmirpoint1974
    @jammuKashmirpoint1974 7 місяців тому

    Good information ❤

  • @saikrishpotlapalli5732
    @saikrishpotlapalli5732 5 років тому +2

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

  • @caveshlin
    @caveshlin 4 роки тому +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  4 роки тому +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.

  • @mister4972
    @mister4972 6 років тому +2

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

  • @paulaplantita8458
    @paulaplantita8458 7 років тому

    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!

  • @ababejama7505
    @ababejama7505 7 років тому

    i love your examples thank you teacher

  • @lashinirabindrakumar6954
    @lashinirabindrakumar6954 9 років тому

    very clear explanation. thanxx a lot

  • @kavitagupta6032
    @kavitagupta6032 4 роки тому +1

    Hii, video is amazing. Can you pls explain how to calculate independent and interferring float for this diagram.

    • @Engineer4Free
      @Engineer4Free  4 роки тому +1

      Mmmm, I just have some videos on general float, see numbers 13-15 here: engineer4free.com/project-management

    • @kavitagupta6032
      @kavitagupta6032 4 роки тому

      @@Engineer4Free Thankyou

  • @mohammedtaha3834
    @mohammedtaha3834 5 років тому +1

    Good explaning thanks

  • @alipirzada2974
    @alipirzada2974 9 років тому +6

    better then my prof...

    • @Engineer4Free
      @Engineer4Free  9 років тому +2

      +Ali pirzada Glad to hear its helping!

    • @abedose
      @abedose 7 років тому

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

    • @THENKINGMr
      @THENKINGMr 6 років тому

      hate to say that,but it is a damn fact

  • @usamahassan5763
    @usamahassan5763 3 роки тому +1

    Thanks bro

  • @himanshumittal5430
    @himanshumittal5430 6 років тому

    Plz also make video to find independent float

  • @zackkhabbazeh9937
    @zackkhabbazeh9937 4 роки тому +1

    thank you

  • @unfinished6404
    @unfinished6404 3 роки тому

    You r amazing! 👍

  • @tumulpurwar8812
    @tumulpurwar8812 6 років тому

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

  • @ssdfgghsttuujkk5404
    @ssdfgghsttuujkk5404 6 років тому +1

    great work man

  • @sumindrabarod8
    @sumindrabarod8 2 роки тому

    Thank you 😊

  • @donaldradaza3525
    @donaldradaza3525 5 років тому +1

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

    • @Engineer4Free
      @Engineer4Free  5 років тому

      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

  • @CelestaleOfficial
    @CelestaleOfficial 9 років тому

    What is the free float of B, when E have predecessor of C and B.

  • @ayazjankaka804
    @ayazjankaka804 8 років тому

    u are amazing sir

  • @ShehzadAkhtar2010
    @ShehzadAkhtar2010 9 років тому

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

    • @Engineer4Free
      @Engineer4Free  9 років тому

      +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!!

  • @flipsidekiller6135
    @flipsidekiller6135 Місяць тому

    what app did you use to draw the diagram

  • @kaitlynli7538
    @kaitlynli7538 9 років тому

    thanks!!! very useful and clear!!

    • @Engineer4Free
      @Engineer4Free  9 років тому

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

  • @rikishi555
    @rikishi555 5 років тому +1

    Thank you Sir! ☺️

    • @Engineer4Free
      @Engineer4Free  5 років тому

      You're welcome Rick, thanks for watching!

  • @saltypapi786
    @saltypapi786 4 роки тому +1

    So how much is the total slack time? 15 days?

    • @Engineer4Free
      @Engineer4Free  4 роки тому

      Total slack is a value given individually to each activity, not the entire project as a whole. It's the amount of time that any specific activity can be delayed, without delaying the finish date of the overall project.

  • @julesbreugelmans4982
    @julesbreugelmans4982 3 роки тому +1

    thank u

  • @razered1899
    @razered1899 5 років тому

    CAN the total float number in one box give different numbers??? or dose that mean a mistake was made in calculating?

    • @Engineer4Free
      @Engineer4Free  5 років тому

      Each activity can only have one value for total float

  • @abiolaolamitundipupo7062
    @abiolaolamitundipupo7062 3 місяці тому

    Thank you, my note did a horrible job

  • @سارهحربي-ب2ي
    @سارهحربي-ب2ي 5 років тому +1

    Thank you 💗

  • @poornimavithanage4455
    @poornimavithanage4455 8 років тому

    thanks! good explanation

  • @SICKANDTHICK
    @SICKANDTHICK Рік тому

    thanksmate !

  • @jodharamya1638
    @jodharamya1638 3 роки тому

    I think there is a mistake in Early start calculation, formula for calculating ES is EF(S)+1 so kindly check & reupdate

  • @SayantanM7
    @SayantanM7 8 років тому +8

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

  • @saadhatif9830
    @saadhatif9830 5 років тому

    Thanks

  • @Bolatova_Maral
    @Bolatova_Maral 2 роки тому

    Thank you)