  We compare the analysis of existing and future neutrino oscillation
long-baseline experiments, where we point out that the analysis of future
experiments actually implies a 12-dimensional parameter space. Within the
three-flavor neutrino oscillation framework, six of these parameters are the
fit parameters, and six are the simulated parameters. This high-dimensional
parameter space requires the condensation of information and the definition of
performance indicators for the purpose needed. As the most sophisticated
example for such an indicator, we choose the precision of the leptonic CP
phase, and discuss some of the complications of its computation and
interpretation.
