•IPS
(Information processing system, Herb Simon, 1972)
•Protocol
studies of mechanical designers (Stauffer, 1985-88)
•IBIS
(Issues, alternatives, and options, Conklin, 1980s)
•IBIS/DT(nee
EDSS, Engineering Decision Support System) (Decision theoretic extension of IBIS, 1995)
•Theory-W
(Boehm, requirements negotiation, 1995)
•ConsensusBuilder
(stand alone, 1998)
•iDecision
(marketed by NexPrise, Summer 1999)
•Ten
Steps for Robust Decision-Making, (2000)