'''CHIP''' (Constraint Handling in Prolog) is a [[constraint logic programming]] language developed by M. Dincbas and alias in 1985 at [[ECRC]]. The commercially successful [[ILOG]] Solver was an offshoot of CHIP.<ref name="RossiBeek2006">{{cite book|author1=Francesca Rossi|author2=Peter Van Beek|author3=Toby Walsh|title=Handbook of constraint programming|url=http://books.google.com/books?id=Kjap9ZWcKOoC&pg=PA444|year=2006|publisher=Elsevier|isbn=9780444527264|page=444}}</ref>. CHIP V5 is the version developped by COSYTEC in Paris since 1993<ref>[http://www.cosytec.com/production_scheduling/chip/chip_technology.htm CHIP V5 Second Generation Constraint Programming Technology] CHIP V5, COSYTEC</ref>. The commercially successful [[ILOG]] Solver is also, partly, an offshoot of CHIP.
