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What is analogous estimating?

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

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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