I also came across Gawande's Checklist Manifesto when creating a usability checklist for websites: https://userium.com/ As Freakonomics said: "The book’s main point is simple: no matter how expert you may be, well-designed check lists can improve outcomes".
Userium seems useful, but philosophically different than Gawande's work. More educational and complete, less aimed at someone who is already an expert at this stuff.
I think both have their place, but people usually think of the former when discussing introducing checklists into processes, and that's usually inappropriate unless you have people performing tasks outside of their domain.
