Profile forms are useful for collecting user-specific or database-specific values. These values are stored in documents that are called profile documents. The difference between documents and profile documents is the way they are displayed and how items are accessed. Only one profile document per form can exist for each user of a database. Or, only one profile document can exist for a database, if that form is available to all users.
Profile documents allow for quick data retrieval, because they are cached while the database that stores them is open. Profile documents are like other database documents except they are somewhat invisible.
Profile documents do not display in views and are not included in a document ...