Brasilata is a tin can manufacturer in Brazil. So far so unremarkable.
Founded in 1955 Brasilata was a successful but otherwise run-of-the mill tin can manufacturer. In 1987 they introduced a suggestion system, again nothing remarkable there. William worked at McCain Foods where they had a suggestion system. The McCain version was a postbox where employees could drop in suggestions, most were grumbles and it is not clear that any suggestion of any value were posted and even less clear if any were acted on. What Brasilata did was different, they encouraged suggestions. The company literature implies that they enforced this process, but it is unclear how anyone enforces anonymous suggestions.
http://www.brasilata.com.br/en/noticias_detalhada.php?cd_noticia=82
See also Self-management
http://sites.som.yale.edu/innovator/2014/05/02/brasilata-one-of-brazils-most-innovative-companies/