ABSTRACT
In 1963, Peter Norden contemplated the life cycle of a basic development process from a pragmatic rather than a purely theoretical perspective in relation to the software engineering sector. the Norden-Rayleigh Curve is based on the Rayleigh Distribution, the Probability Density Function and Cumulative Distribution Function are not the most elegant to read. The 'conventional' truncation point for a Norden-Rayleigh Curve is at the 97% Confidence Level, which always occurs at 2.65 times the Mode. The Norden-Rayleigh Curve equivalent of the Rayleigh Probability Density Function (PDF) is the relative resource loading or cost expenditure 'burn rate' at a point in time. If we accept the principles and properties of the Norden-Rayleigh Curve then the effective end date is some 3.5 times the Mode or point of peak resource or expenditure. Appropriateness and Explicitness comes in the definition of any constraints we choose to impose, thus meeting our TRACEability paradigm.
