TOGAF defines four core architecture domains: Business, Data, Application, and Technology. These domains collectively represent the key areas covered in enterprise architecture, where the Business Architecture defines business strategy and organizational goals; Data Architecture addresses data management and structure; Application Architecture focuses on system and software applications; and Technology Architecture outlines the IT infrastructure.

References: TOGAF Standard, Architecture Domains (Chapter 3).

TOGAF, as a comprehensive Enterprise Architecture framework, divides the architecture landscape into four interrelated domains:

Business Architecture: This domain focuses on the organization's strategic goals, business processes, and organizational structure. It defines how the business operates and creates value.

Data Architecture: This domain deals with the structure, organization, and management of data assets within the enterprise. It includes logical and physical data models, data storage, and data security.

Application Architecture: This domain describes the applications used to support the business, their interactions, and their alignment with business processes. It provides a blueprint for the application portfolio.

Technology Architecture: This domain covers the technology infrastructure that supports the applications and data. It includes hardware, software, networks, and IT services.

These four domains provide a holistic view of the enterprise and how its different components work together.