The path from the original idea to observe a target to the value-added data delivered by APIS is long and complex, and involves a significant work from many persons and services as the principal investigators for requesting and programming the observations, the conceivers of the telescope and its instruments, the engineering team of the ESA/NASA Hubble Space Telescope for collecting the data, the Space Telescope Science Institute (STSci) and the ESA Hubble Science Archive (ESAC) for calibrating and archiving raw data and developing interactive tools for spectra (Specview, VOspec), the Institut de Mécanique Céleste et de Calcul des Ephémérides (IMCCE, Observatoire de Paris) for providing planetary ephemeris, the University of Iowa for providing ephemeris of the Cassini and Galileo spacecraft, the Centre des données de Strasbourg (CDS) for developing the Aladin interactive software and finally the APIS team for developing this service.