The root page 15DOTs60ia13:Tutorial could not be found in space 15.S60 SSIM: Software Tools for Operations Research.
Default CPLEX
Callbacks allow user written code to be run at select points to monitor or influence the behavior of the CPLEX solver. Before modifying the behavior of the solver, lets understand exactly how the solver works. Below is a somewhat simplified picture of the algorithm CPLEX is using to solve an integer program.

TODO