In order to provide abundant atomic data for fusion research in the stage of precisionphysics, a scenario, being a combination of indispensable theoretical calculations and bench-markexperimental measurements, is proposed. Such abundant atomic data are compiled mainly bytheoretical calculations. Accuracies of such abundant data (i.e., atomic energy levels and correspondingcross sections) are ascertained only by a finite number of bench-mark experimentalmeasurements based on analytical calculation of scattering matrices. In order to provide abundant atomic data for fusion research in the stage of precision physics, a scenario, being a combination of indispensable theoretical calculations and bench-markexperimental measurements, is proposed. Such abundant atomic data are compiled mainly by theoretical calculations. Accuracies of such abundant data (ie, atomic energy levels and corresponding cross sections) are ascertained only by a finite number of bench-mark experimental measurements based on analytical calculation of scattering matrices.