Enterprise Architecture
Enterprise Architecture is a dynamic, multi-faceted framework that changes constantly to meet the needs of companies. It describes the technology, systems and processes that help organizations achieve their goals.
Some frameworks:
The Zachman Framework for EA
Unified Architecture Framework
The Open Group Architectural Framework
Agile Enterprise Architecture focuses an organization around a flexible, extended collection of structures and processes that can grow.
Interesting takeaway notes: Architecture Owner is responsible for the architecture of the system or subsystems. This person is not solely responsible for the architecture, but is the technical leader of the team.