Archive
Exclude something; keep what outlives the rest and treat everything else as gone.
Keep three items from the session; let the rest go.
Seen in Committee chaired by Carl Sagan, Voyager Golden Record, 1977
Try it on your work
From everything your current work has generated, choose the few things that get kept if everything else goes: a strict container's worth, no more. Label it for a stranger; the labelling is where the deciding happens.
Write the one-page account of this project that should exist if all other records vanished: what it was, what it found, what it cost. One page, hard limit. Everything that didn't fit was, by your own hand, not essential.
Define, before it's needed, what your project preserves on termination: which records, in what form, findable by whom. Stop when someone else could execute the preservation without you. An archive designed at the end is an alibi; this one isn't.
How it has been used
Decide what is preserved when everything else disappears: the time capsule, the sixty photographs from the thousand, the boxes that survive the move. The move forbids keeping everything: an archive with no exclusions is storage, and the decision is the operation.
Where it leads
Grouped under Protect what still needs to work