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AboveSoft Adaptive Estimator principles are simple:

1) A template file that defines a tree of questions, each of the questions -or nodes- with a related duration; some of them will be activated only if their parent questions are answered. The following figure shows a question that activates two more questions:

This template file can be created by an end-user with some functional knowledge. An ABAP/4 template file is included (english & spanish versions).

2) The ended projects will be considered for calculating future estimations. This "learning" process is dynamic, it only depends on which ended projects do you want to select at the moment of making a new estimation. Suppose you have a template TEMPLATE; and you select the ended projects A and B to adjust the template estimation:

The template estimation has different durations for each of its questions. Project A used Question2 and Question3 to perform an estimation; and Project B used Question1 and Question2. The adaptive version of TEMPLATE uses each project deviations to calculate a new duration for its nodes -the average of template plus node's actual duration on the projects-. See the figure above for more information.