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Oracle ADF Enterprise Application Development—Made Simple by Sten E. Vesterli

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Adding it all up: the final estimate

When you have gathered all the detailed task estimates, you need to add up the details to a total estimate for the entire project.

As a starting point, you add up all the expected task efforts. Remember that these are calculated based on your three-point estimates using the formula earlier in this chapter. This total is the most likely total effort needed to complete the project.

Swings and roundabouts

A fairground owner will say: "What you lose on the swings, you gain on the roundabouts". A developer will recognize this: Some things take longer (closer to the pessimistic estimate), and some take shorter (closer to the optimistic estimate). However, it is extremely unlikely that everything takes as long as the ...

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