SAP NetWeaver' Evolution
With the passage of time NetWeaver has been simplified to further ease administrative and maintenance support.
NetWeaver '04 was shipped with the same version of WebAS powering mySAP ERP, SCM, SRM, and so on.
As a result a common technical foundation was created.
As WebAS and all the other NetWeaver components continue to mature, they provided greater flexibility, and reduced overall costs.
NetWeaver '05 are NetWeaver '04 essentially the same products but with different versions of WebAS underneath them.