I am writing ServiceLayer using SessionBeans with local calls. I read Hibernate in action book and know about DTO (ValueObjects) which allow to pass data between tiers which working in different processes. But is it possible to pass domain objects to client (Web application) from local session bean or I should use DTO? I think it right, because session beans with local interface working in same process with J2EE client and EJB. I am wrong or right?

Hibernate version: 3