Artistic concepts comprising proposed undertakings or creations, including the creation of works of art or architecture, or for the actual carrying out of such proposals. When emphasis is on specific conceptual schemes for the organization or appearance of graphic works, objects, structures, or systems, use "designs." For visual works and other physical items that are used to carry out the project, use "projects (object groupings)."

Source: AAT

http://vocab.getty.edu/page/aat/300048788