PIE Axion

The following scenario further explains the PIE Axion.

1.) Programmer states that a software endeavor will take 3 weeks to complete. This is referred to as PIE (Programmer's Initial Estimate).

2.) Take the 3 weeks (PIE) and multiply it by PI (3.14) and you get approximately 9.5 weeks. This is the value of X which turns out to be closer to real time the programmer will need to finish the project.

Conclusion
The PIE Axiom has been applied in many of my personal software projects over the past twenty years and development managers can gain from the use of this Axiom as they will have a better time to completion estimate.

Axiom - an axiom is a proposition that is not proved or demonstrated but considered to be either self-evident, or subject to necessary decision. Therefore, its truth is taken for granted, and serves as a initial point for deducing and inferring other (theory dependent) truths.

PI - Pi is a mathematical constant whose value is the ratio of any circle's circumference to its diameter in Euclidean space; this is the identical value as the ratio of a circle's area to the square of its radius. It is more or less equal to 3.14159 in the usual decimal notation.

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The PIE Axion defines the equation X = PIE * PI where PIE is the Programmer's Initial Estimate (PIE) of time to finish a given endeavor. X is the definite time that it will take for the programmer to complete the endeavor. So PIE (Programmer's Initial Estimate) multiplied by the mathematical term PI will be a closer approximation of the time needed to complete the undertaking.

Michael Chunn - Software Developer http://www.linkedin.com/in/michaelchunn

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