He initiated the development of The combination and application platform that grew to become the NetWeaver System.[1] Netweaver's style and design would wrap SAP programs within an architecture that allowed integration inside an organization and online with other organizations. The System leverages SAP portal principles and application architecture ideas from https://www.ecom-group.com/training-events/case-study-apply-the-sap-enterprise-architecture-framework-along-an-architecture-development-cycle-iea10/