Attributes that can be defined to index certain pieces of data on a document so that it can be searched from the Document Search screen.
Technical considerations for a Searchable Attributes are:
They are responsible for extracting and indexing document data for searching
They allow for custom fields to be added to Document Search for documents of a particular type
They are configured as an attribute of a Document Type
They can be written in Java or defined in XML by using Xpath to facilitate matching