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## Which is a characteristic of the bottom-up estimating method?

Bottom-up estimating involves **the estimation of work at the lowest possible level of detail**. These estimates are then aggregated in order to arrive at summary totals. By building detailed cost and time estimates for a work package, the probability of being able to meet the estimated amounts improves substantially.

## How do you do bottom-up estimation?

**5 Steps to Bottom-Up Estimating**

- Identify All Project Required Tasks.
- Estimate All Tasks Identified in Your WBS or Project Activity Definition.
- Identify Task Dependencies.
- Identify the Resources Required to Complete All Tasks.
- Determine When Resources Should Complete These Tasks.

## What is Bottomup estimate example?

The accuracy of a bottom up estimate is **the average of the lower level components of the estimate**. For example, if task #1 has an accuracy of 10% and task #2 has an accuracy of 20%, the overall estimate will have an accuracy of 15%.

## Which statement is true of bottom-up estimates?

Which statement is true of bottom-up estimates? **They are time-intensive and expensive to develop**. Soles is a footwear company which has recently set up its store in Ambrosia. To manufacture its products, Soles incurs a range of different costs.

## What are the differences between bottom-up and top-down estimating approaches under what conditions would you prefer one over the other?

There are also two approaches: top-down estimating and bottom-up estimating. In the top-down approach **you will estimate the duration of deliverables and/or major deliverables**. … Bottom-up estimating is more accurate, but requires that the project be well defined before commencement of estimating.

## What is the difference between bottom up cost estimation and parametric cost estimation?

Bottom-up estimating starts by breaking the project down into individual activities and then having a subject matter expert create estimates for each activity. Parametric estimating relies on a mathematical model to predict project costs based on selected project characteristics.

## What is the difference between analogous and bottom up budget estimation?

Among all the options, analogous estimation is the least accurate, and bottom-up estimating is the most precise. There is a difference between this process and **the estimate activity duration process**; however, both use the same tools for estimation. One applies to cost and the other to duration.

## Why is bottom up estimating generally considered more accurate than top down?

Why is bottom up estimating generally considered more accurate than top down? -The tools used are not as precise as top down. –**Using the WBS detail allows for more accuracy**. … Using the WBS detail allows for more accuracy.