2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/10751We discuss some aspects of data management important to cross-wavelength comparison of images and catalogs. We then consider the application of statistics to the general problem of object cross-identification. Finally, two software systems developed as tools to aid the comparison of catalogs and images are briefly presented.appears in IAU Symp. 179 Proceedings: New Horizons from Multi-Wavelength Sky SurveysAstrophysicstext