was a virtual map of the surveyed area stored in what came to be known as The Itanos Archaeological Survey database, which was developed over the period and has been online since 2006 running on the servers of the French School. The database stores points (données, "data") on the map. One point is a numbered site containing one or more objects of archaeological interest, such as a wall, or a scatter of sherds. The information for a site includes description, date, etc. The database is searchable on a range of specifiable criteria. The archaeological survey, 1994–2005, focused on remains discoverable on the surface. Also, a deliberate decision was made to ignore concentrations of sherds if there was no other surface manifestation. To locate sites the team turned to aerial photography, which was simplified by the previous existence of military fly-over photographs dating from 1945, 1966, 1968, and 1992. These were compared to 1:5000 maps in possession of the Institute. To supplement them another fly-over was staged in 2004 to capture oblique views. Noting that the photographs were indicating a "diversity of soils and landscapes" the team thought it more efficient to divide the surveyable territory into 11 zones, which they named after topographic features, such as hills. The zones form a semi-circle around the walled city but do not include a central area comprising Vai Palm Forest and agricultural land west of the ancient city. Excluded from public access to the database are the two quasi-islands, Kyriamadi and Sideros, on the military reservation. Their being surveyed was assigned to the 24th Ephorate (another government agency). Whether or not they were surveyed and what might have been found there has not been released to the public, nor it is mentioned in the publications. Ground teams decided what was to be considered a site, which must have an above-ground feature. It was then assigned a number. A decision was made to have the numbers run consecutively within the whole territory rather than within the zones. Assessments of the date and culture came from laboratory analysis of sherds collected at the site. The ground teams used GPS to obtain coordinates for a site. Greece, however, uses the EGSA87, which gives different coordinates based on Greek reference points. According to the policy of the 24th Ephorate GPS coordinates are converted to EGSA87 coordinates, which are the ones appearing on maps of the survey, when