Using "Backfiring" to Accurately Size Software

[article]
More Wishful Thinking than Science?
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Summary:
To make the transition between souce lines of code (SLOC) and function points (FP) easier, a method called "Backfiring" was developed to calculate function points by taking the SLOC count and multiplying it by a static factor based on the dominant software programming language. This article presents the basis for the two measures: Function Points and source lines of code, highlighting their differences and distinct advantages.

Functional Size Measurement is a fairly recent concept to be embraced by the information technology industry. But increasingly the method of Function Points Analysis (FPs), as maintained by the International Function Point Users Group (IFPUG), is establishing a position as the gold standard of software measurement.

To make the transition between souce lines of code (SLOC) and function points (FP) easier, a method called "Backfiring" was developed to calculate function points by taking the SLOC count and multiplying it by a static factor based on the dominant software programming language. This article presents the basis for the two measures: Function Points and source lines of code, highlighting their differences and distinct advantages. 

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About the author

Carol Dekkers's picture Carol Dekkers

Carol A. Dekkers is President of Quality Plus Technologies, Inc., a management consulting firm specializing in creating peace of mind for companies who want to improve their software processes. Software measurement, software quality, process improvement, requirements, and software sizing (using function point analysis, as an example) are a few of the Quality Plus areas of specialization.

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