What is the relationship between local interfaces and container-managed

Question :What is the relationship between local interfaces and container-managed
relationships? (EJB)
Answer :Entity beans that have container-managed relationships with other entity
beans, must be accessed in the same local scope as those related beans,
and therefore typically provide a local client view. In order to be the target
of a container-managed relationship, an entity bean with containermanaged
persistence must provide a local interface.