I have estimated my Basis of Estimate as a single amount but I would like to do it as a three point estimate to capture the uncertainty in the estimate
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Posted 2 years ago
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Could you provide some examples  visuals of what you need and why. That helps us understand better
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Sorry for being slow
It's a pert technique
Threepoint estimate is a tool used to help increase the accuracy of cost and time estimates. Like the name implies, there are three parts which are the three different estimates.
An optimistic estimate is what you hope will be the amount of time to complete their project assuming everything goes as planned.
The pessimistic estimate is the worst case scenario and is an estimate that you give if everything goes wrong.
The most likely estimate is what will most likely happen and usually falls between the pessimistic and optimistic estimate.
Then use that in the formulas to give an indication of actual finish time and potential deviation
It's a pert technique
Threepoint estimate is a tool used to help increase the accuracy of cost and time estimates. Like the name implies, there are three parts which are the three different estimates.
An optimistic estimate is what you hope will be the amount of time to complete their project assuming everything goes as planned.
The pessimistic estimate is the worst case scenario and is an estimate that you give if everything goes wrong.
The most likely estimate is what will most likely happen and usually falls between the pessimistic and optimistic estimate.
Then use that in the formulas to give an indication of actual finish time and potential deviation
 1862 Posts
 327 Reply Likes
Ok.
There are some ways to get close to what you want..
 You could add two subtopics to each task topic One called Optimistic
and One called Pessimistic ( you could create a mappart for it, to copy them to where you need them )
Next you add, from the advanced tab, a Property called Realistic to the Task Topic. You now selet Autocalc and Fill in your formula to set the realistic property to the average Estimate property for ll children. You will See that the estimate property is now visible in te Optimistic and Pessimistic Sub Topic. You click the property and fill in the estimates e..g: 10 for optimistic and 16 for pessimistic.
You will see the average in your Realistic property. You can use that to set the task info correctly.
Ofcourse you would love to do this automated, but please try this first and next look for the automation.
 You could do the calculation of the most likely estimte in Excel and than import that result into a topicproperty. You could use the (ADDIN) Map function Excel property for that
https://www.olympiclimited.co.uk/mindmanageraddins/mapformindmanager/topicproperties/
 Another option could be to use the MATH function in MAP (ADDIN) to do the calculation inside MindManager
https://www.olympiclimited.co.uk/mindmanageraddins/mapformindmanager/math/
For both options, there is a timelimited trial version of MAP.
Check it
There are some ways to get close to what you want..
 You could add two subtopics to each task topic One called Optimistic
and One called Pessimistic ( you could create a mappart for it, to copy them to where you need them )
Next you add, from the advanced tab, a Property called Realistic to the Task Topic. You now selet Autocalc and Fill in your formula to set the realistic property to the average Estimate property for ll children. You will See that the estimate property is now visible in te Optimistic and Pessimistic Sub Topic. You click the property and fill in the estimates e..g: 10 for optimistic and 16 for pessimistic.
You will see the average in your Realistic property. You can use that to set the task info correctly.
Ofcourse you would love to do this automated, but please try this first and next look for the automation.
 You could do the calculation of the most likely estimte in Excel and than import that result into a topicproperty. You could use the (ADDIN) Map function Excel property for that
https://www.olympiclimited.co.uk/mindmanageraddins/mapformindmanager/topicproperties/
 Another option could be to use the MATH function in MAP (ADDIN) to do the calculation inside MindManager
https://www.olympiclimited.co.uk/mindmanageraddins/mapformindmanager/math/
For both options, there is a timelimited trial version of MAP.
Check it
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