Derived from the International Standards Organization
code for a business that meets expected standards. As a
slang term, it's used as a pejorative to denote
something that's typical, by-the-numbers, formulaic and/or cliché.
"If you take out all the
pop-
culture references, Ready Player One is really just the same ISO 9001 standard 'Young-Adult
Teen Dytopia' story that's been made a hundred times already."