GWT (formerly the Google Web Toolkit) is a development toolkit for building and optimizing complex browser-based applications
RequestFactory is a component of the Google Web Toolkit that targets developers building data-oriented (CRUD) applications.
Better counterpart db4o
"Gwt requestfactory by design is slower than gwt rpc and gwt json etc"
from question "GWT RequestFactory Performance"
"From gwt 2.1 requestfactory is better counterpart than gwt rpc when you use db4o together"
from question "Using javasist GWT and DB4O"
|More complicated systems||
"With requestfactory you pay an up-front startup cost to accommodate more complicated systems than gwt rpc easily supports"
from question "When should I use RequestFactory vs GWT-RPC?"