Process is documented culture. How a team gets a familiar thing done should be broadly understood by the team. This is how we fix a bug. This is how we do a code check-in. This is how a feature is designed. This is how executive sign-off occurs.
Process comfortably and efficiently describes the common path. Process does not define what to do when the indescribable occurs. A crisis or a disaster does not neatly fit into the common path; it’s when you need someone to swoop in, break the glass, and put out the fire.