2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/143406The ESAC Gaia team engages in a form of eXtreme programming while the DPAC will follow a series of six month development cycles modeled on this approach. As a project within the European Space Agency the European Committee for Space Standardization (ECSS) standards are required. We present the bringing together of these realms.4 pages no figuresAstrophysicstext