this type of audition where hundreds of models will show up to be viewed by casting directors or photographers. Usually new models are sent by their agents so that they can be introduced.
A general audition for roles where many people turn out looking for the part. A mob scene; often an "open call".
Large number of talent all auditioning for the same job.
several agencies send many models of the same general type to a casting session.
A large scale casting where talent are quickly reviewed and very little interaction occurs between those doing the casting and those being seen. Lori Lins Ltd. charges to set up this service.