Holzbecher, EkkehardGnauck, AlbrechtHeinrich, Ralph2019-09-162019-09-162003https://dl.gi.de/handle/20.500.12116/27044The attribute 'coupled' for a model can be found frequently in the modelling and simulation literature. A detailed look reveals that there are various different meanings. There are coupled processes, coupled compartments, coupled mathematical equations and coupled software codes. Despite all differences in almost all occurrences the attribute of coupling is used to describe feedback, which is more complex than what is meant by the terms link, connection or influence. A systematic approach is presented aimed to structure and classify different models. Some examples, mainly from environmental modelling, accompany the general line as explained above. They are mostly taken from hydrological sciences and problems concerning the water cycle or parts of it.Text/Conference Paper