For the extrapolation to future large fusion devices, similar scenarios on different size tokamaks are essential to investigate the formation process, power threshold and steady state prospects of Internal Transport Barrier (ITB). In the 2000 JET campaigns, dedicated experiments have attempted to reproduce the ASDEX-Upgrade stationary advanced scenario. In addition to extending the domain of existence of ITBs in JET to the q = 1 integer surface, the experimental similarities between ASDEX Upgrade and JET suggest that these advanced regimes may have the same underlying physics.