On completion of the excavation, the information recorded is studied at the archaeological base. Work begins with the preliminary classification of the site documents, as well as the completion of the cleaning and, where relevant, the marking of the finds.

Different tasks are then allocated to the team members. At this stage, the composition of the team changes: those involved in post-excavation work are not the same as those who worked in the field. There are new participants, specialised collaborators chosen because of what was found.

The first priority is the dating of the structures so as to establish the chronology of the whole of the site. The stratification observed in the field is reconstructed and compared with the material discovered to date the successive human occupations. Based on an initial global plan of all the structures, plans by chronological phase are established. Representative plans and sections are selected to be scanned and redrawn by computer.

An overall image of the site is thus obtained showing living quarters, workshops, enclosures, farming areas, cemeteries……