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(Russian article) Raises a valid question: how do we statistically interpret PERT deviation? Can we use it to estimate confidence level? Author thinks it is too much inaccurate, from pure statistics point of view. Proposes alternative approach (based on 2 point estimations, min & max, and Normal distribution.

Short (but to-the-point) explanation of how to use PERT approach to estimation of tasks. What's important, it gives a formula to calculate confidence level.

The article outlines a simple approach to effort estimation, based on the past experience of the team members (statistical).

The article outlines a simple approach to effort estimation, based on the past experience of the team members (statistical).

(Russian Article) Explains lots of various PM-related stuff. Includes: use PERT to estimate tasks and risks; method to prioritize bugs based on "value/risk rectangle" ("квадрат риск-приоритет"), and others.

Here is another online tool for project management. Not free, again :( Haven't tried it, but would like to. Uses evidence-based estimations, built in.

Short howto on using PERT in Microsoft Project.

Gaperton's comprehensive guide for mastering project plans.