How do we calculate total time and free float time? In critical path analysis.
easy. Will only explain when you're online @Karla
I'm online right now Are you?
@Hero
Sorry I missed you @Karla
Now?
Oh there you are. Is it possible for you to upload the question you're working on. Can you screenshot it from your textbook and upload it here?
There is no option to upload the picture
Oh but there is. It's called "Attach File". It is a set of buttons right below the typing box.
I'm using mobile
Oh. Well use a website like postimage.org to upload it.
Then post the link here. That's what 99% of users usually do.
Keep in mind I have a limited amount of time.
Oh I've uploaded
You have to post the link to the image here. I'm sorry you've never done this before. i don't know how to show you how to do this correctly.
Yea I haven't
c'mon Karla. You can figure this out. It's not a difficult site to use.
I figured that out 😃
nah you posted the wrong link.
Oh
You posted a link to the gallery not the link to the image.
Oh I did that
It's part 4 Calculate all free float and total floats
Trust me, you still have not done it right. The link you posted is still the incorrect link even though QC processed it as an image. Whatever you posted kicked me off QC and I had to sign in again. Nevertheless, I have the image now.
Oh I can see the picture without link here
Yes Karla, as I said "QC processed it as an image". But trust me, you still have not posted the correct link. I don't know why you haven't figured it out yet, but it doesn't matter I have the image. Anyway what I want to say is that your book is using terminology I have never heard of before.
It's non-traditional terminology. What is the name of this textbook?
Peter stimpson and Alastair farquharson Cambridge international As and A level Business Coursebook third edition
That explains it. It's international. I'll never be able to find it now.
Oh
It's okay, I'll try to do some research on these terms.
Oh okay thank you!
What terms I can tell you them
I'm starting to figure it out. Hang on.
Ok
Let me ask, have you already created your network diagram?
@Karla are you still here?
Yea
Okay, just checking.
I tried to make one but I'm not sure that is correct
Okay, how much time to do you have to work on this question. I have to start getting ready for work.
5 min maybe What is the time in your country
You can tell me the time when you are free I'll get online
It is 8.44 pm here
Okay. Basically, I won't be back for a couple hours. I should be back by 11:30 pm your time.
And hopefully I'll have solved everything by then
Alright Thank you! I'll get online
Then I can explain it
Ok
See you in a couple hours
Okay
So if I ping you @Karla will you get an alert?
No when I'll get online then I can see that
Only
You should either set up a gmail on QC then set it up to receive alerts.
Oh I dont use gmail to often
too*
whatever email you use, you should add it to QC
Ok
Your email service should have a way for you to set up alerts
Anyway, I have to go
Okay Bye
Hey!
I'm back
I am unable to make draw last part
Hi
I'm back as well. Let me put together a solution for this
Hi! Ok
You there?
Yes sorry. I'm done
I haven't done this in like 8 years so I had to re-familiarize myself
Oh
But I have the solution
Great!
Let me know if you have any questions
F must be completed before I commence
So as F has no preceding activity shouldn't it be connected with first node
Yes that is correct. It isn't connected to anything except I
Do you see that this is the case?
But If i remember that correctly when anything has no preceding activity it is connected with first mode?
I only grouped it beneath A since both A and I have no preceding activity
Node*
But they are NOT connected
Do you understand that F is only connected to I?
Yea
Okay great
Ok
Is that really the only question you have?
Yea But I've another question in which I only need to calculate free float and total float So after this I'll do that myself
Well, I think that now that you have the correct answer you should be able to calculate those things.
I can help if necessary
Oh Total float is LFT-duration-EST And FREE FLOAT= EST(next activity)-duration -EST (this activity) I dont get that what LFT or EST will we take? I mean of A,B,C,D...?
And what does LFT and EST stand for. Your nation deals with completely different terminology so you can't use any acronyms with me.
oh sorry EST=earliest start time LFT=latest finish time
Yeah I don't get your notation either.
are those dashes supposed to be subtraction symbols?
Yep
rewrite the formulas and put MINUS instead of dash
Okay
You can use acronyms now that I know what they mean
Total float is Latest Finish Time(minus) duration( minus) earliest start time And FREE FLOAT= Earliest start time(next activity) (minus) duration (minus) earliest start time(this activity)
Oh
Okay
Hmmm interesting.
they want this for each node (A, B, C, D)?
or for the entire project time
@Karla
Do they want these calculations for each node?
Oh each node okay Then I'll do that
No, I'm asking if that's what they want
I don't know if that's what they want.
Oh now I reread the question it says all free float
Thank you so much!
I'm lost lol
But it says to calculate these values only for the non-critical nodes
Oh yea So I'll find the non critical path and put the values in formula
Right?
Correct
But actually you don't have to find a non-critical path
Why?
Just find the non-critical nodes
Oh yea 👌
Ok
Thank you so much!
Looks like the non-critical nodes are CDF and H
How do you intend to calculate the Free and Total Float for node C for example?
Show me your work for that
Ok 1 min
So total float is 4-2-4 Right?
Where are you getting those numbers from?
From your diagram
I don't see 4 listed twice for node C
Also, if you're getting them from my diagram, how do you know how to interpret those numbers?
But what we make have 2 earliest start time and latest finish time
But when we make we have 2 numbers *
I never used any such numbers to represent "early start time" and "latest finish time"
Oh so what u do?
I only used two sets of numbers. Duration of Time To Complete a Particular Node By Itself and Total Project Time It Takes To Complete Node X Starting from Node A
Something like that
Oh
X represents any node other than node A
and F
Oh we do like I send you the pic
That is different way
Yeah, I calculated it correctly.
I know you do it differently but the answer is still correct
Oh
Ok
Some of the calculations are unnecessary from my point of view.
Ok
But let me help you out
Ok
C and D each have two extra days of float time since it will take B 6 days to complete F has 6 days of float time H has only 1 day of float time 2 + 2 + 6 + 1 = 11 total float time
11 total float days*
Does that make any sense to you at all?
You got H as 1 As G=12 And H=11 So difference
Yes, I think you are interpreting correctly the way I am calculating Free Float and Total Float
Oh alright
Free Float C = 2 days of free float D = 2 days of free float F = 6 days of free float H = 1 day of free float Total Float 2 + 2 + 6 + 1 = 11 days total float
Alright
If I have to do it the teacher way, I usually run
I rather do it the easy way
Yea that was really easy way
Thank you so much!!
But it is important to manage the time properly because it is easy for the manager to think "Oh we have 11 days to play around with". That's plenty of time. Then if the employees think they have 11 days of float time, they won't do anything for 11 days and the project will surely fail. So don't tell the employees and monitor the time very closely.
I think that actually answers one of the questions as well.
Maybe you can think of a more technical way of explaining why the time must be monitored closely.
Oh, you already did #3, nevermind
No I didn't lol But I've to write advantages of critical path analysis so that are written in book
And disadvantages
With some additional detail
If any delays occur, then you can push back the start time for the non-critical projects and delicate manpower towards ensuring the critical projects are completed on time.
Also, post the feedback from your instructor regarding this particular question.
Okay
Thanks!
You bet
Yea
Join our real-time social learning platform and learn together with your friends!