The first time I heard about this was from Joel Spolsky of Fogcreek&#x2F;Stackoverflow. It really changed how I&#x27;ve approached postmortems and encouraging those to really drive deeper into problem solving. <a href="http:&#x2F;&#x2F;www.joelonsoftware.com&#x2F;items&#x2F;2008&#x2F;01&#x2F;22.html" rel="nofollow">http:&#x2F;&#x2F;www.joelonsoftware.com&#x2F;items&#x2F;2008&#x2F;01&#x2F;22.html</a>