A multimedia warehouse is a superset of a data warehouse. It can include within it a standard data warehouse but contains additional digital objects. The focus in a multimedia warehouse is the relationship between the digital objects. Metadata is a key element for enabling searching between the digital objects.
Chapter 4, Searching the Multimedia Warehouse will cover how to search against the objects in a multimedia warehouse. It will cover the different search methods, dealing with false positives and how to format and display the results.