Hofstedt, PetraFähnrich, Klaus-PeterFranczyk, Bogdan2019-01-112019-01-112010978-3-88579-270-3https://dl.gi.de/handle/20.500.12116/19307Constraints support an efficient modeling and solution of problems in two ways: The most common application is their use for the description of problems with incomplete knowledge. On the other hand constraints may also serve as particular language constructs for the control of the program evaluation process. This paper presents the Concurrent Constraint Functional Language CCFL which comprises both aspects.enText/Conference Paper1617-5468