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What is analogous estimating?

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Please explain what analogous estimating is in project management, and how does it differ from the standard way of estimating tasks.
asked 10 years ago by anonymous

1 Answer

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Analogous (analogous means similar) estimating is a kind of a ballpark estimate that takes into consideration previous similar projects when it comes to assessing how much time or money is needed to complete a project.

For example, let's say that a previous project consisted for creating a LAN for a small school, while your current project is to create a LAN for a large school, about 4 times the size of the small school. Since your LAN project on the smaller school had a total cost of $100,000 and a total duration of 2 months, then, if we apply Analogous estimation, then your current project (which is 4 times that size) will cost $400,000 and will take about 8 months to get finished.

Clearly, analogous estimating can be misleading, and they should only be used to give a very fast estimate when a project is being considered in the company (that happens in the pre-selection phase).

Note: Analogous estimating is a top-down estimating technique.
answered 10 years ago by TheManager (6,220 points)

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