vault backup: 2025-07-28 17:12:58

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2025-07-28 17:12:59 -04:00
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commit f161a5329e
8 changed files with 167 additions and 49 deletions
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@@ -11,7 +11,7 @@ Risk-Oriented Estimating (ROE), is a methodology for [[construction-estimating]]
* prioritizes estimating tasks,
* determines necessary [[estimating-detail]]
ROE leans heavily on [[perfect-information]],
ROE leans heavily on [[uncertainty#Value of Information]],
which challenges the natural tendency to shy from uncertainty
with the reality of the cost of certainty.
@@ -41,16 +41,17 @@ ROE prioritizes estimating tasks by their contribution to _cost certainty_.
ROE determines the appropriate level of [[estimating-detail]]
given an organization's [[risk#Risk Tolerance]].
## EVPI Takeoff
### EVI Takeoff
%%
Expected value of information (EVI)
## Scratch
### Takeoff Optimization
Expected value of perfect information (EVPI)
For systems where EVI analysis determines manual takeoff is still necessary,
optimizations can be made to decrease the required effort of takeoff,
and thus the opportunity cost of takeoff.
Count-based takeoff speed increases with count.
%%
Optimizing the takeoff process means:
@@ -62,6 +63,13 @@ Optimizing the takeoff process means:
> It appears that similar efforts have already been made here,
> their success being a matter of perspective.
> [!note] Naming Conventions (Use Case vs. Description)
> Naming by use case is intuitive for those without estimating or field experience,
> but has the side effect that those accustomed to the names will inevitably _treat them as descriptive_.
#### Naming Conventions (Use Case vs. Description)
Naming by use case is intuitive for those without estimating or field experience,
but has the side effect that those accustomed to the names
will inevitably _treat them as descriptive_.
| Use Case | Description |
| ------------------- | ------------- |
| Hi-Hat | Daisy-Chain |
| Furnished By Others | Rough-In Only |