<FONT face=Verdana>Internetware system is a kind of complex system that is typically situated in dynamic and open environments and adapts to the changes of environment.How to effectively develop such systems has become a great challenge in software engineering community.This paper introduces an agent-based integrated environment SADE for developing Internetware systems.It consists of a number of technologies for Internetware such as agent-based abstraction and construction

dynamic binding mechanism for self-adaptation and selfevolution

ODAM methodology

self-adaptive <FONT face=Verdana>strategy description language SADL

etc.The technical framework of SADE and itscomponents are introduced in details

including ODAMTools to analyze and design Internetware

the programming toolkits to code Internetware and runtime infrastructure.A case study is illustrated to show how to develop Internetware system with our approach.