_#_back_#_ _#_home_#_ _#_forward_#_ Bean Types 

 
Session Bean
implements javax.ejb.SessionBean
Entity Bean
implements javax.ejb.EntityBean
Represents one client
    (1 instance per client)
Represents underlying data
    (shared instance)
Short lived Long lived
Transient Persistent
No key Unique object id
Statefull or Stateless Container- or Bean managed
May be transactional Always transactional
Mandatory for EJB 1.0 Optional for EJB 1.0