SYSE.1:5.1 - Pumping station under flood risk

A flood-reduction project starts with the phrase “new pump”. The engineer compares the pump unit, the pumping station, the drainage-control System, and a provider arrangement. Flood-control use crosses the pump-unit boundary: positioning, power, control, discharge conditions, and downstream exposure belong to the station’s current use question. The engineer selects the pumping station and records:

selected referent: intended pumping station
current reason: move water under the selected flood load as part of flood-control use
main unresolved assumption: downstream exposure remains acceptable
reopen: use, architecture, realization, or operating evidence changes that assumption or boundary

SYSE.2 can now link the flood-load use claim to a station concept. Later discovery that the proposed station increases downstream harm changes the linked use claim. It reopens the project-system choice only when that changed claim defeats the reason or boundary used by the choice account.