Monday, August 25, 2003 07:44 AM
At this point I would like to suggest that you give a shot to reading the life cycle part of the EJB specification. It will give you the concepts that you seem to be looking for.
In the meantime, here is a short answer: they cater to two different needs. Home is for the construction of the object, while the second exposes the functionality of the object. Similar to the Factory / Object paradigm in COM, or the many other Object component models.
Read the FAQ section of this site, there are some very good explainations in there too...