Multiple viewpoints in functional size measurement
Christopher J. Lokan, Alain Abran · 1999
Although there is broad agreement on the sorts of things to take into account when measuring functional size, there is a variety of opinion about how to do it. This is partly because several different views of functionality are addressed in functional size measurement. Some are better understood than others. In particular, the "general systems characteristics" (GSC's) and "value adjustment factor" (VAF) are poorly understood. Our aim is to provide a foundation for research that may improve this aspect of functional size measurement.