The product manager opens the catalogue dashboard on Wednesday.
A variant in the valve family has a revised pressure rating; she edits the specification value once, the product page, the comparison table and the family listing all show the new figure, and the superseded datasheet is replaced with the new version while the old one stays in the version history with its date.
A test house has issued a new report covering a whole family; she attaches it to the family with its date and scope and it appears on every product in that family.