Are standards like ISO 9241 "Ergonomics of Human System Interaction" of any relevance in the industry? Are there examples of certified software products? And would you do a certification of your software products?
It is a useful read, and has some applicability to UI. But I wouldn't go through the trouble to certify an application. General rule of thumb is don't waste efforts that won't increase user base and their satisfaction. But as I said there are lessons to be learned that will benefit your users such as placing related functioonality close by and suff like that.