Functional Sizing

by Harold Van Heeringen

Functional size (function points) is universally considered to be the square meter of the software industry. It is the only international standard used to measure the size of software in a standardized, objective, repeatable, verifiable and defensible way.

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About Harold Van Heeringen

Harold van Heeringen worked for IT service provider Sogeti for 17 years as a senior consultant software metrics/cost estimation consultant. He then moved to IDC (METRI), as a principal consultant and practice lead for IT Intelligence services (including Estimation & Performance Measurement). Harold is a director on the ISBSG board and a board member of Nesma. He regularly publishes white papers, blogs and articles on software metrics and performance measurement.