You're saying that SLOCs/month was a larger number than Halstead-Bits/month?(id est, 1 programmer for 1 month produces 1 module that measures at 1000 SLOC or 500 Halsteads?) I wouldn't be surprised, but that wasn't what I meant. I meant that there was a really high correlation between SLOC, Semicolons & Halsteads - you could pretty much write an equation of the form: "Halsteads = (M * SLOCs) + B" and have it be pretty darned close to being right on the money. Or are you saying something different? MDC -- Marin David Condic Senior Software Engineer Pace Micro Technology Americas www.pacemicro.com Enabling the digital revolution e-Mail: marin.condic@pacemicro.com "M�rio Amado Alves" wrote in message news:mailman.1017939422.18187.comp.lang.ada@ada.eu.org... > > You're both right. I also did a study correlating program text metrics > and actual development cost in programmers*month. SLOC had the best > results, notably beating Halstead. It was a small project (10k SLOCs if > I remember correctly), but it was unbiased i.e. the programmers didn't > know about the metrics in advance. >