expensive often inflexible and hard to evolve in business logic The reason – the systems are big, complex Monoliths But companies are continuous evolving constructions that are evolutionary and modular by themselves – so their Enterprise Systems have to comply with this Agile Enterprises require modular IT Systems Enterprise Apps provide unified, consistent modularity for new and existing enterprise systems to enable flexible, evolutionary development, maintenance and operation Technology, and designed area Business, and functional area versioned, exchangeable Modules Systems, Services IT Landscape Company Modules are the common view of all stakeholders and the transition from business to technology Management Business Technology Platforms, Technologies, Code- and Objectstructures