Consider the following scenario to interact with "Museum Augmented reality mobile application to identify the works of art$*$ then answer the questions $17$Museum visitors are no longer satisfied with a simple visit. They wish to have exciting and engaging experiences. Therefore, the HCI company wanted to enhance the museum facilities with meaningful multimedia experiences by creating a tool that could identify a huge number of artworks, regardless of where they were positioned in the gallery with existing exhibition rooms.The HCI company developed an AR mobile application that allows the visitors to scan and instantly recognize artworks to reveal relevant information. Once the Image is tracked, the users have access to relevant information about the piece and artist. To work around the unstable mobile connection within the museum compound, the company used offline Image Tracking AR technology, also provides free downloadable audio guides, high$-$definition videos, a $3000+$ image gallery.Museum visitors using the AR app at the museum do not need to search for artwork titles and descriptions to learn more about a specific artwork. Instead, they can easily identify pieces with a quick and simple scan using their smartphones. This innovative, helpful, fun, and interactive augmented reality experience has been very well received by museum visitors.Question $(1)$:$[6$ Points$]$ Identify and Explain one suitable interface metaphor for the above scenario. Then evaluate it to determine how much structure your metaphor provide and how much is relevant to the problem and whether it is extensible?