Slipmark

Project plans record the latest expected date but usually discard who predicted what, with which confidence and under which conditions. Slipmark freezes authorized commitments, reconciles them with later outcomes and builds calibration profiles that adjust future estimates into probability ranges. The supplied research confirms forecast-accuracy tracking in institutional research and several project-forecast products, while finding no verified project-operations product centered on forecaster calibration. A confirmed seat price is an observed market reference, not fixed product pricing. Longitudinal history is difficult to backfill, but customers must be able to export source events and derived methodology; lock-in is not a valid moat by itself. A Brier score measures forecast calibration against defined outcomes, not competence, effort or employee value. Commitment, confidence, scope, dependency, outcome, exception, score, forecast distribution, manager judgment and delivery result remain separate. Individual punitive rankings should be prohibited. The product can improve planning conversations and expose systematic optimism. It cannot guarantee delivery dates, compare unlike work fairly or justify employment decisions from calibration data.

A portfolio, delivery or engineering operations leader managing repeated commitments and seeking better forecast ranges without individual surveillance.