Conceptual Association of Functional Size Measurement Methods

June 24, 2009 · Filed Under Software Estimating  - 0 Comment(s)

The May issue of the IEEE journal included an article on a unified method of counting function points.  The authors discuss the conceptual similarities and differences between functional size measurement methods and introduce a model for unification. They call it the “Unified Model.”

 They explored resolving the differences between the IFPUG counting (predominant method), the COSMIC counting rules (gaining popularity, primarily in Europe), and Mark II function points (which I don’t know of anyone using). For full disclosure, Galorath’s Ton Dekkers  is the president of NESMA, the force behind COSMIC and Galorath has a relationship with IFPUG as well.  These were the three functional sizing methods made into ISO standards.  From my understanding ISO chose three methods and assumed the market would decide which were useful. 

Seems to be a well written paper but we (and I am sure others) have been able to convert from method to method with much simpler approaches.


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Related posts:

  1. COSMIC Function Points In SEER
  2. Function Point Simple Introduction
  3. Dealing With Generated Lines of Code
  4. Lines of Code Versus Functon Points Versus Use Cases For Sizing
  5. Step Four: Software Sizing

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