Dragon1 is an enterprise architecture brand that offers a comprehensive approach to visual enterprise architecture. It serves as both an open method for creating visual enterprise architecture and as an enterprise architecture framework. Dragon1 covers the development of various architectures including enterprise, governance, business, information, and technical architecture.

Additionally, it encompasses solution architecture, reference architectures, and security architecture. Developed by the Dragon1 Architecture Foundation, this open EA method has been effectively utilized in numerous projects across Europe since its release in 2003. It focuses on producing visual architecture products that aid in strategic decision-making and stakeholder requirement collection.

Dragon1 is recognized by ISO and is an approved architecture method in The Open Group's IT Architecture Certification program. It also emphasizes the importance of principles, architects, and the coherent set of constructive, operative, and decorative business, information, and IT concepts that comprise an enterprise's structure. Dragon1 has a growing user community in the Netherlands and is being adopted by governments and commercial organizations in other countries as well