In message <001501ce2039$a083a5d0$e18af170$@cox.net>, dated Wed, 13 Mar 2013, Ed Price <edpr...@cox.net> writes:

Maybe I?m just not seeing the bigger picture, but to me, a component list is a pretty poor aid to ensuring any continuing product compliance.

It's of minimal value for EMC compliance, because, as you imply, it's practically impossible to find some part that is not 'critical'. For safety, the situation is better; a 10k SMD resistor or 100 nF decoupling capacitor could almost certainly fail without creating an unsafe condition, but, for example, a failed (shorted) Y-capacitor or opto-coupler would create an unsafe condition.
--
OOO - Own Opinions Only. See www.jmwa.demon.co.uk
SHOCK HORROR! Dinosaur-like DNA found in chicken and turkey meals
John Woodgate, J M Woodgate and Associates, Rayleigh, Essex UK

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