The Final Word

The main things to note:

COM+ is marked down in state management since it has no container-managed persistence
EJB is marked down for deployment because of the current platform inconsistencies. This mark should rise as EJB 2.0 compliant platforms appear
EJB is marked down for robustness since it is not explicitly covered or mandated in the specification. However, some individual EJB products would rate higher than COM+ for robustness
It is difficult to give an overall rating for consistency of implementation for EJB since it varies form vendor to vendor
Aspects of CORBA Components such as ease of development and robustness are difficult to judge until products ship and have therefore been marked down
No presumptions have been made about the platform support or consistency of implementation of CORBA components