All artificial EIS data were generated, unless otherwise specified, using log-spaced frequencies in the 10 -4 -10 4 Hz range with 10 points per decade. We first considered a single ZARC model, for which we analyzed the influence of the experimental error, the number of collocation points (N as defined in equation ( )), and truncated spectra. After that, we studied models with overlapping (2×ZARC) and discontinuous timescales (piecewise constant and fractal elements).