text: A folder is the object with which users 
  query and retrieve reports. A folder can 
  query more than one application group, 
  provided the application groups have the 
  same database fields. 
  
  The application group is wher e you define 
  the database, cache storage, and archive 
  storage requirements for reports. An 
  application group can contain more than 
  one application, provided the applications 
  have the same database and storage 
  management attributes. 
  
  Each application represents a repor t that 
  you want to define to the system. You 
  must assign an application to an 
  application group. 