Another principle I'd add is the number of checks and launch process dates depend on the criticality of the change (Google's Launch/Ariane system). A data migration or a privacy change will get a lot extra checks and consideration than a simple UI change.
Nice summary of engineering practices at Google!
Another principle I'd add is the number of checks and launch process dates depend on the criticality of the change (Google's Launch/Ariane system). A data migration or a privacy change will get a lot extra checks and consideration than a simple UI change.