BTW 5 days x 3 men = 15 man days not necessarily 15 man hours. If work hours are 1 hour per day/man then it would be 15 man-days. If 8 hours/day/resource it would be 5 days x 3 resources x 8 hours/day/resource = 120 resource hours.
Member for
24 years 9 months
Member for24 years9 months
Submitted by Patrick Weaver on Sat, 2021-07-10 03:02
I do not believe out of the box MS project has physical work field and production rate fields, you must figure out a way to tweak it. Maybe an attempt to fill the gap is through the use of physical % complete field but this is still incomplete data, volume of work is the missing link that makes production rates meaningful.
I suggest creating a UDF for; volume of work and production rate and make it transparent. It will never be as functional as when these fields are integral part of the software logic but at least it is something. When resource production rates are integral with your resource planning software it should be able to look for the best allocation of resources with different productivity.
I guess MSP was developed by accountants who can only think of work as work hours no matter if productive or not. I am surprised they did not used the physics formula for work; work = force x distance.
Not all work can be measured if using physical progress, it is not always that easy; measuring programming progress can be one example.
As we say at home; faulty language faulty thinking. You are right MSP glossary is faulty.
Member for
24 years 8 months
Member for24 years9 months
Submitted by Vladimir Liberzon on Fri, 2021-07-09 17:05
in Spider Project there is activity Volume of work (1000 meters) and assigned resources productivity (meters per hour).
Duration is calculated as Volume divided by total productivity of assigned resources.
Resource hours are calculated as duration multiplied by resource quantity.
I expect that other experts will explain what is Work in other tools and why it is measured as duration.
I don't like it. Amount of work does not change when you replace resources but duration can change. And so more work or less work depends on resource assignments that is not logical.
Member for
19 years
Member for19 years
Submitted by Rodel Marasigan on Fri, 2021-07-09 09:03
Rodel, ok lets forget MS project for a second. I gave it only as an example. In reality, work is the actual thing we need to do (lay 1000 meters of pipe). Not something in hours....
But in scheduling, it is represented as hours to simply indicate the amount of effort done by resources correct? So they should have said "amount of effort", instead of "work" and it is in hours correct? Because the scheduling program calculates it by work (amount of effort) = duration x number of resources assigned to it....
So for example lets say we have 100 meters of pipe to lay. This is the work in reality. But in scheduling the work is represented as work = duration x number of assigned resources. So if the task continued 5 days and 4 labor worked on it, then the work is 4x5 = 20 hours. And lets say 1 man-hour is rated at $40. So the actual labor cost of laying the pipe would be 20x40=$800. And if 1 meter of pipe costs $10, then the cost of material is $10x100 = $1000. So the actual cost (AC) that we will use in EVA will be: $800 + $1000 = $1800. Correct?
And if during estimating stage we had planned work as 5 days x 5 labor, it means we had planned it as 25 man hours. This means, we had planned 25x40=$1000 for labor. Material is the same so our planned value PV was $1000 +$1000 = $2000 correct? so the cost variance would be $1800-$2000 = -200 which means we are under budget.
Rodel, ok lets forget MS project for a second. I gave it only as an example. In reality, work is the actual thing we need to do (lay 1000 meters of pipe). Not something in hours....
But in scheduling, it is represented as hours to simply indicate the amount of effort done by resources correct? So they should have said "amount of effort", instead of "work" correct? Because the scheduling program calculates it by work (amount of effort) = duration x number of resources assigned to it.... as in the formula I wrote
Member for
21 years 8 months
Member for21 years8 months
Submitted by Rafael Davila on Thu, 2021-07-08 17:49
Your fundamental formula is not correct. You can enter the unit without the resouces. Please read my post. Material unit of measure will be shown once defined and assigned to task. See below:
[[wysiwyg_imageupload:7821:]]
The default is hours because the resource default is work. Please note that unit of measure of materials cannot added to hours therefore unit is not shown unless it is define.
work is something that has to get done. In the construction world most work can be measured in units or quantity to install
let's take light fixtures as an example you create an activity to install light fixtures there is an specific number of light fixtures for that activity in may be in a particualr area or room. So you need to know the Quantity of light fixtures before you can say how many manhours hours it is going to take and how many men you want to use to install them.
same as Vlad pointed out.
Member for
19 years
Member for19 years
Submitted by Rodel Marasigan on Thu, 2021-07-08 14:45
Work in MS Project = hours not manhour because it can be an equipment hours or labor hours. As I explained earlier, there is only 3 types of resource in MS Project:
1. Work (labour or equipment)
2. Material
3. Cost (Expenses)
If you define a resource as Material and assigned it to Task the Work will show the unit of measure (Material Label) enter on the Resource Sheet.
I am not sure if I understand all you said but I think you are describing what MS project does. My question is though, this: Is work expressed in hours or man hours, as in the fundamental formula I wrote?
In MS Project environment, Work fields or column is the total amount of time to perform the work or total budget time to schedule for a resource on task or simple called budget hour (labor or equipment or both). Please note that MS Project has only three types of resource (Work, Material and Cost) so you need to be careful when assigning work resource to task if equipment and labor is both assigned using Work type. You can show the Work (field) column even on Gantt chart view by inserting this column and put your estimated budget hours. By default, work column is shown on resource usage and work material will also show when defined on the resource sheet and assigned on the task. Like the other planning and scheduling software, Work (field) will respond on the resource assigned based on the selected Task Type (Fixed Duration, Fixed Unit (or fixed unit/time on other software) and Fixed Work(or Fixed Unit in other software). It is only available on Auto task and not on Manual Task. Duration will be the spread of Work based on selected Accruals in Resources Sheet (Start, Prorate or Finish). You can manually distribute the Work hours in Resource usage by manually overwrite the existing value and reflect your estimated proportion of resource spread.
Member for
24 years 8 months
Member for24 years9 months
Submitted by Vladimir Liberzon on Thu, 2021-07-08 09:56
Member for
15 years 11 monthsHi Polat,Your example Work =
Hi Polat,
Your example
Work = 5 days x 3 men = 15 man hours , must be Read as 15 Man-Day.
If the Labors Work for 8 hrs per day then it Reads as 120 Man-Hours.
Hope this is Clear.
Member for
21 years 8 monthsBTW 5 days x 3 men = 15 man
BTW 5 days x 3 men = 15 man days not necessarily 15 man hours. If work hours are 1 hour per day/man then it would be 15 man-days. If 8 hours/day/resource it would be 5 days x 3 resources x 8 hours/day/resource = 120 resource hours.
Member for
24 years 9 monthsMan hours is considered
Man hours is considered 'sexist' - the term 'work hours' or hours of effort or equipment hours have been substituted for gebder nutrality.
Member for
21 years 8 monthsPolat,I do not believe out of
Polat,
I do not believe out of the box MS project has physical work field and production rate fields, you must figure out a way to tweak it. Maybe an attempt to fill the gap is through the use of physical % complete field but this is still incomplete data, volume of work is the missing link that makes production rates meaningful.
I suggest creating a UDF for; volume of work and production rate and make it transparent. It will never be as functional as when these fields are integral part of the software logic but at least it is something. When resource production rates are integral with your resource planning software it should be able to look for the best allocation of resources with different productivity.
I guess MSP was developed by accountants who can only think of work as work hours no matter if productive or not. I am surprised they did not used the physics formula for work; work = force x distance.
Not all work can be measured if using physical progress, it is not always that easy; measuring programming progress can be one example.
As we say at home; faulty language faulty thinking. You are right MSP glossary is faulty.
Member for
24 years 8 monthsPolat,in Spider Project there
Polat,
in Spider Project there is activity Volume of work (1000 meters) and assigned resources productivity (meters per hour).
Duration is calculated as Volume divided by total productivity of assigned resources.
Resource hours are calculated as duration multiplied by resource quantity.
I expect that other experts will explain what is Work in other tools and why it is measured as duration.
I don't like it. Amount of work does not change when you replace resources but duration can change. And so more work or less work depends on resource assignments that is not logical.
Member for
19 yearsHi Polat,Sorry, I don't
Hi Polat,
Sorry, I don't understand what are you trying to achieved.
Member for
4 years 6 monthsRodel, ok lets forget MS
Rodel, ok lets forget MS project for a second. I gave it only as an example. In reality, work is the actual thing we need to do (lay 1000 meters of pipe). Not something in hours....
But in scheduling, it is represented as hours to simply indicate the amount of effort done by resources correct? So they should have said "amount of effort", instead of "work" and it is in hours correct? Because the scheduling program calculates it by work (amount of effort) = duration x number of resources assigned to it....
So for example lets say we have 100 meters of pipe to lay. This is the work in reality. But in scheduling the work is represented as work = duration x number of assigned resources. So if the task continued 5 days and 4 labor worked on it, then the work is 4x5 = 20 hours. And lets say 1 man-hour is rated at $40. So the actual labor cost of laying the pipe would be 20x40=$800. And if 1 meter of pipe costs $10, then the cost of material is $10x100 = $1000. So the actual cost (AC) that we will use in EVA will be: $800 + $1000 = $1800. Correct?
And if during estimating stage we had planned work as 5 days x 5 labor, it means we had planned it as 25 man hours. This means, we had planned 25x40=$1000 for labor. Material is the same so our planned value PV was $1000 +$1000 = $2000 correct? so the cost variance would be $1800-$2000 = -200 which means we are under budget.
And in all this, work is in hours
Member for
4 years 6 monthsRodel, ok lets forget MS
Rodel, ok lets forget MS project for a second. I gave it only as an example. In reality, work is the actual thing we need to do (lay 1000 meters of pipe). Not something in hours....
But in scheduling, it is represented as hours to simply indicate the amount of effort done by resources correct? So they should have said "amount of effort", instead of "work" correct? Because the scheduling program calculates it by work (amount of effort) = duration x number of resources assigned to it.... as in the formula I wrote
Member for
21 years 8 months(No subject)
Member for
19 yearsYour fundamental formula is
Your fundamental formula is not correct. You can enter the unit without the resouces. Please read my post. Material unit of measure will be shown once defined and assigned to task. See below:
[[wysiwyg_imageupload:7821:]]
The default is hours because the resource default is work. Please note that unit of measure of materials cannot added to hours therefore unit is not shown unless it is define.
Member for
4 years 6 monthsThanks Zoltan I understand
Thanks Zoltan I understand what you say and agree with you, but then why is the fundamental work formula as follows:
Work = duration x number of assigned resources
.....this makes work as duration x labor = manhours.... not how many light fxtures we install
Member for
16 years 3 monthswork is something that has to
work is something that has to get done. In the construction world most work can be measured in units or quantity to install
let's take light fixtures as an example you create an activity to install light fixtures there is an specific number of light fixtures for that activity in may be in a particualr area or room. So you need to know the Quantity of light fixtures before you can say how many manhours hours it is going to take and how many men you want to use to install them.
same as Vlad pointed out.
Member for
19 yearsHi Polat,Work in MS Project =
Hi Polat,
Work in MS Project = hours not manhour because it can be an equipment hours or labor hours. As I explained earlier, there is only 3 types of resource in MS Project:
1. Work (labour or equipment)
2. Material
3. Cost (Expenses)
If you define a resource as Material and assigned it to Task the Work will show the unit of measure (Material Label) enter on the Resource Sheet.
Member for
4 years 6 monthsThanks Rodel,I am not sure if
Thanks Rodel,
I am not sure if I understand all you said but I think you are describing what MS project does. My question is though, this: Is work expressed in hours or man hours, as in the fundamental formula I wrote?
Member for
4 years 6 monthsThanks Vladimir I think the
Thanks Vladimir I think the same way, but then what about the formula itself? Per that we have man hours. So which one is right?
Member for
19 yearsHi Polat,In MS Project
Hi Polat,
In MS Project environment, Work fields or column is the total amount of time to perform the work or total budget time to schedule for a resource on task or simple called budget hour (labor or equipment or both). Please note that MS Project has only three types of resource (Work, Material and Cost) so you need to be careful when assigning work resource to task if equipment and labor is both assigned using Work type. You can show the Work (field) column even on Gantt chart view by inserting this column and put your estimated budget hours. By default, work column is shown on resource usage and work material will also show when defined on the resource sheet and assigned on the task. Like the other planning and scheduling software, Work (field) will respond on the resource assigned based on the selected Task Type (Fixed Duration, Fixed Unit (or fixed unit/time on other software) and Fixed Work(or Fixed Unit in other software). It is only available on Auto task and not on Manual Task. Duration will be the spread of Work based on selected Accruals in Resources Sheet (Start, Prorate or Finish). You can manually distribute the Work hours in Resource usage by manually overwrite the existing value and reflect your estimated proportion of resource spread.
Member for
24 years 8 monthsCorrect way to measure the
Correct way to measure the work is physical units (cubic meters, tons, etc.). With the same man hours different volume of work can be done.