Some of Key features- (4)
Complete state of a distributed application can be saved in a Database (Oracle) in addition to in XML
Therefore, the previous sessions can be recovered from database in addition to XML document
Gateway has a simple fault-tolerance model : when either proxy or the real object is down, the system will recover from the database
An application consisting of components running at different machines can be defined in XML and started automatically.
Instead of manually starting, Gateway servers also can be started through URL easily