What is considered an attribute of a good building block in TOGAF?

A building block in TOGAF represents a fundamental unit of architecture that can be combined with other building blocks to create necessary structures within an enterprise's architecture. An attribute of a good building block is its reusability, which allows organizations to develop components that can be used across different projects or areas within the enterprise. This reusability not only promotes efficiency in development but also helps in maintaining consistency and reducing redundancy in architectural components.

When a building block is designed to be reusable, it can significantly lower the costs associated with development and implementation since teams can leverage existing solutions rather than starting from scratch for every new project. This aligns with TOGAF’s goal of achieving operational efficiency and coherence in enterprise architecture.

In contrast, while meeting business needs, having public interfaces, and providing guidance for solution development are also beneficial characteristics for building blocks, the fundamental advantage highlighted is the ability to reuse components, which fosters sustainable practices within the architecture framework.