from the text of your [1]:<p>The second, the R-W-W (“real, win, 
worth it”) screen, sometimes known 
as the Schrello screen, can be used to 
evaluate individual projects. Versions of 
the screen have been circulating since 
the 1980s, and since then a growing 
roster of companies, including General 
Electric, Honeywell, Novartis, Millipore, 
and 3M, have used them to assess busi-
ness potential and risk exposure in their 
innovation portfolios; 3M has used 
R-W-W for more than 1,500 projects.<p>(I&#x27;ve never tried to dig any deeper than seeing mentions that Don Schrello seems to have put it together sometime in the 1960s&#x2F;1970s as part of his marketing company.)