Architecture Principles guide the development, maintenance, and use of the Enterprise Architecture, ensuring that it aligns with the organization's business strategies and vision. They provide a common understanding and set of guidelines that help control the business in pursuit of its strategic objectives. They are not about forming contracts, describing impacts of architecture deployment, or providing a deeper understanding of the enterprise's culture and values.

A building block is described as a package of functionality defined to meet business needs across an organization in the TOGAF standard. This characteristic emphasizes the modular and reusable nature of building blocks, allowing them to be integrated and adapted as per the organization's requirements.

The TOGAF standard covers the development of four architecture domains: Business, Data, Technology, and Application. These domains provide a comprehensive framework for designing, planning, implementing, and governing an enterprise information architecture.