An Artist is a human entity that carries a worldview, the one its Profile captures through a Motor and a Means. This entity consists of one or more people: a duo or a collective forms a single Artist, designated by the name under which it exhibits.
The worldview is carried by the permanent members. A collective counts as an Artist as long as its permanent members outnumber its passing members. Beyond that point, the name designates an organisation, which continues through statutes or a protocol, no longer an Artist: the entity ends on that date and its Profile covers the earlier period. A permanent member is one present throughout the period of the solo exhibitions in institutions on which the collective's recognition rests, under the criteria of the International Scene or the French Scene. When a collective's membership is not documented, its page says so.
An artistic approach is indivisible. For any given period, a member and their collective have only one Profile: that of the more recognised signature, measured first by its solo exhibitions in institutions. Before the collective was founded or after it disbanded, the member's individual practice has its own Profile; the two Profiles never cover the same period.