Both models are used for the prediction of thermodynamic properties, especially the estimation of phase equilibria.
The UNIFAC consortium is a successful example of private sponsorship of a public university in Germany.
UNIFAC (Dortmund) have already been used widely in software for the simulation and synthesis of chemical processes.
This is facilitated through the support of over 40 companies, and is particularly aided by the DDBST GmbH, which supplies the complete Dortmund Data Bank (DDB) and several software tools for free.
[1] The major goals are to The model parameters are confidential and only accessible to consortium members for at least two and a half year after the first delivery.