SWAT-CUP is a program for calibration of SWAT models.
The program could be used to perform calibration, validation, sensitivity analysis (one-at-a-time, and global) and uncertainty analysis.
The program links SUFI2, GLUE, ParaSol, MCMC, and PSO to SWAT. Any of the procedures could be used to perform calibration and uncertainty analysis of a SWAT model.
SWAT-CUP also has graphical modules to observe simulation results, uncertainty range, sensitivity graphs, watershed visualization using Bing map, and statistical reports.