The Final Word

In summary:

• COM+ has a single, consistent implementation (service packs allowing) from a single vendor. However, this implementation is limited to a single platform (Windows 2000). Also, it is too early to judge certain COM+ services, such as the Event Service and Queued Components.
• EJB is available on many platforms and can exploit long-standing, proven technology to implement its features. However, issues persist regarding cross-vendor interoperability and porting between platforms
• CORBA Components are still to be proven in the market