Re: Inspections Was: RE: [AM] ANN: Mashing Deadly Myths

The purpose of inspections is defect removal.  Pairing will remove SOME
of the defects that an individual programmer would leave in the code,
but not all of them.  For example, University of Utah study that
Cockburn and Williams cite in "The Costs and Benefits of Pair
Programming" found that pairs left 15% fewer defects in their output
than individual programmers.  The inspection literature estimates
that disciplined inspections remove typically 50% to 80% of defects,
largely because they involve multiple inspectors. The Utah 15% is
consistent with single-inspector defect detection rates (it's actually
toward the low end of typical ranges).

scott

| > -----Original Message-----
| > From: J. B. Rainsberger [mailto:[email protected]]
| > Sent: Tuesday, February 24, 2004 3:44 PM
| > To: [email protected]
| > Subject: Re: Inspections Was: RE: [AM] ANN: Mashing Deadly Myths
| > 
| > Tiseo, Paul wrote:
| > 
| >  > You don't ask the doctor who just told you your cancer
| > > is incurable the same question again, do you? And, you don't limit
| > yourself
| > > to the knowledge of one doctor, do you? No. So, you ask around. Another
| > > analogy: How often do you miss a grammatical error in a text, simply
| > because
| > > you are the one who wrote it?
| > 
| > Right. That's why we Pair Promiscuously: we get second opinions every day.
| > --
| > J. B. Rainsberger,
| > Diaspar Software Services
| > http://www.diasparsoftware.com :: +1 416 791-8603
| > Let's write software that people understand

-- 
scott preece
motorola urbana design center (il67), 1800 s. oak st., champaign, il  61820  
e-mail:	[email protected]	fax:	217-384-8550
phone:	217-384-8589	cell: 217-433-6114	pager: [email protected]

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