Comparison of D2k ,OAF and ADF

D2k	OAF	ADF
Desk Top Application	It is Frame with MVC Architecture	It is a Frame work with MVC Architecture
It is a Client and Server Architecture	It is a 3-Tier Architecture	It is a N-Tier Architecture
From Builder used to develop the applications	JDeveloper is used to develop the applications	JDeveloper is used to develop the applications
PL/SQL	JAVA	JAVA
Drag and Drop features	No Drag and Drop features	Drag and Drop features
Client and  Server Application	Web Application	Enterprise Application