The SAS is a sorting machine that requires as little space as possible but
still offers the flexibility of a bigger sorting machine. The SAS has six
shelves and two drop boxes. The first box is meant for items that can not be handed out to customers again after checkin, like reservations or books from other departments. The second box is meant for AVM items and the remaning six shelves are devided for sorting on writer, SISO and childrens books. Shelves three and four are standard shelves inside the SAS, the shelves on the back side on the other hand can be replaced with Trolley's. The checked in romans and childrens books are thus sorted directly on the carts. As a standard, the SAS is made with two attached shelves on the back side.