What is Total Float (Total Slack) and how to calculate it in a network diagram

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Project Management Tutorial: What is total float (total slack) and how to calculate it in a network diagram.
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Glad to hear it!! There are more vids at engineer4free.com/project-management if you still need =)

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Thanks for the compliment, glad you like the videos :)

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[@Engineer4Free]

Happy to hear it!! Do check out engineer4free.com/project-management for the rest of the videos if you haven’t already!! 🙂

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[@Engineer4Free]

Thanks Sanjeev!! If you haven't already found it, the whole free course is here: engineer4free.com/project-management

[@krakow17]

very clear explanation putting the activity,Duration,ES,EF,LS,LF into boxes helped understand the forward and backward pass more easily. please put up a tutorial for person/day effort estimate too if you can! thanks!!

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[@Engineer4Free]

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[@Engineer4Free]

Haha yup, such is life! Glad you liked it ☺️

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That's awesome, you're welcome!! 🙂

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[@Engineer4Free]

Thanks for the kind words friend! Really love getting feedback like this!! Glad your liking the videos :)

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Prof linked your videos as part of my project management class. Short and to the point, as well as easy to understand. Sweet vid, thanks!

[@Engineer4Free]

Cool glad your prof is sharing the videos! Full project management playlist is linked in the video description 😁

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[@Engineer4Free]

Glad o hear it :) make sure you check out engineer4free.com/project-management for the whole free course!

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[@Engineer4Free]

It doesn't need to be difficult! I'm glad I can help. You should check out the rest of the playlist here: engineer4free.com/project-management too 😊😊

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[@Engineer4Free]

Hope it went well!! (=

[@Parkjisung91]

it's really cool how these diagrams are making sense..back and forth. i just wonder who came up with these and how it was made. it just makes sense like that lol

[@krutimehta481]

Sir you are genius. Your videos are so easy to understand. I couldn't attend my lectures and was finding this chapter hard but now I can solve examples real quickly

[@Engineer4Free]

That's awesome to hear! If you haven't already, make sure you check out engineer4free.com/project-management for the whole free course :)

[@rachelott4241]

I'm just a random high schooler so I didn't need this for an exam or anything but I think this is pretty interesting and a really efficient way of explaining! thanks for posting!

[@Engineer4Free]

Haha nice. Well glad your spending your time in productive ways! If your interested in learning more about project management, you can see the whole series that I did at engineer4free.com/project management stay cool! 😎

[@lauragordon9524]

Thank you for these backward and forward pass videos and float/slack videos! Our text book didn't explain it very well.

[@Engineer4Free]

Glad I could help! =)

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You've truly mastered the art of teaching

[@obediencemhlanga2073]

Thank you very much for this. You free my day. I was wondering how to determine the critical path. Now I understand it.

[@Engineer4Free]

Glad it was helpful!!! Make sure to check out the full Project Management playlist here: kzbin.info/aero/PLOAuB8dR35oeyKU0ojIxD8Muf6Mwc8ugW =)

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[@Engineer4Free]

Glad it was helpful!!! =)

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[@Engineer4Free]

Thanks Israr!!! There are more vids over @ engineer4free.com/project-management too =)

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[@Engineer4Free]

Great!! Thanks for watching. If you haven;t already, do check out the rest of the PM vids I made at engineer4free.com/project-management 🙂

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Thanks homie, means a lot!!! =). Check out the rest of my vids at engineer4free.com/project-management if you haven’t already 🤙

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Thanks a lot! The full playlist is here: engineer4free.com/project-management =)

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[@Engineer4Free]

Ouch. This stuff is better taught in video than just text for sure! Glad I can help.. make sure you check out all the PM vids I did at engineer4free.com/project-management if you haven't already 👌👌

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[@Engineer4Free]

Thanks Sruthy! =) =)

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[@Engineer4Free]

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Glad it was helpful!

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[@Engineer4Free]

Glad I can help! Check out all the vids at engineer4free.com/project-management if you haven't already!!

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+Joanne thanks for the comment! ^_^

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Thanks Pelagius 😇

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[@Engineer4Free]

Glad it was helpful!!! More PM vids @ engineer4free.com/project-management =)

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[@hubtal]

I do software training and have recorded lessons of my own. I commend you on the clarity of your explanation and delivery. I think one thing that may trip some of us is that not all node legends are consistent. In PMBOK 6, the duration goes top middle and float bottom middle. You have to be careful not to fall in the trap of mechanically adding and subtracting from memorizing the boxes. Thank you

[@Engineer4Free]

Hey thanks for writing. Yup not only are node legends inconsistent, but also whether the project begins at 0 or 1. That also trips up a lot of people. I've found that if someone truly understands the logic, then numbering/labelling conventions used won't matter. It's all too easy to not really focus on why the logic works, and just blindly follow methods exactly. I do always hope that people watching these videos take the time to think about the logic :)

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Very good presentation for P6 learner.

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Thank you!

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I had to write a supplementary exam because my lecture spent 1 hour explaining this and even afterwards I didn't understand a thing. Thank you sir

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Glad I can help you out Joseph!

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[@Engineer4Free]

Glad to hear it! Make sure you check out all my PM videos at engineer4free.com/project-management if you haven't already

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Glad to hear it! Enjoy the well deserved break =) =)

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Thank you again

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Thanks Saba

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Excellent video!

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+Brasewel Noronha Thanks for the feedback!

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Brilliant... Explanations

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Thanks Aemon!

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wow..just who r u. this diagram is wonderful.

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[@Engineer4Free]

Glad I can help Rose, if you haven't already, do check out all the PM videos that I did over at engineer4free.com/project-management 😁😁😁😁

[@manalalshaikh9074]

many thanks!!

[@Engineer4Free]

You're welcome, thanks for watching!

[@sabuselvi896]

The Early Finish for B and Early start of D should be "8" for D its 9 .. you may want to correct it . . I understand its an error . The explanation is really GOOD

[@Engineer4Free]

Hey Sabu, the EF of B is 8. The EF of C is 9. Because all relationships are simple Finish-to-Start, Activity D's ES is then limited by the largest EF of it's predecessors, which is 9. So ES of D is 9, not 8.

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Really helpful

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Thanks for letting me know =)

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Great Content

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Thanks!!

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life saver

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+Aditya Salunkhe I'm glad I was able to help save your life :)

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You’re welcome!! 🙂

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Thanks very much

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You’re welcome, thanks for watching! 🙂

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You're welcome. Glad I can be an other person interacting with your brain and life.

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Thank you

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You're welcome!

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Thanks man

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You're welcome! =)

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Perfect

[@iTzThis]

When you do the backwards pass, why do you use the smaller number? What's the logic behind this?

[@cliveroberts1444]

@engineer4free, what stylus are you using?

[@Engineer4Free]

Hey Clive, I use an Bamboo Wacom drawing tablet, you can find all the hardware and software that I use here: engineer4free.com/tools

[@sodycworks1580]

Thanks

[@amarssq6580]

sir how to determine total float if sum of late start-early start is not the same as late finish-early finish..i cnt find in the other vid as well

[@joeyb8006]

What if it is a larger diagram with multiple steps that have float? Do you add them?

[@Engineer4Free]

Hey Mike I have examples with float in videos 13-22 here: engineer4free.com/project-management video #22 might be of interest you you as it's a bit of a bigger nasty problem.

[@sanchitafarruque4748]

Ty for that! However, should Activity D have an ES of 8 rather than 9? I'm confused :(

[@Engineer4Free]

Hey Sanchita, when doing the forward pass, if an activity has multiple predecessors, take the largest EF of all predecessors as the ES of the activity. So in this case we have 8 and 9, so choose 9!

[@sanchitafarruque4748]

Engineer4Free Ah of course! Doh! Ty! Awesome tutorials! ❤️❤️❤️

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respect boss

[@Engineer4Free]

Thx bro

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Excellent work

[@alanuren8916]

What about using a time-scaled dependency chart?

[@Engineer4Free]

Are you referring to Gantt charts? If so, you can check videos 1-3 here: engineer4free.com/project-management

[@ranukadulshan951]

Great

[@Engineer4Free]

Thanks! Full PM playlist is linked in the description 😁

[@yusufaliy6592]

why didn't you use the first lesson example to solve the total float/slack? Thanks

[@Engineer4Free]

Hmmm, not sure exactly which first lesson you’re referring too. This video is part of a greater playlist, and I generally introduce one concept at a time in each video to keep them to a reasonable length. See videos 1 - 15 here: engineer4free.com/project-management for the first few topics in project scheduling