Architecture for non-functional requirements refines all of the non-functional requirements to develop architecture specifications. Architecture specifications and domain architecture specifications, are some of the key outputs of this phase.

Non-functional requirements-related use-case scenarios and use-cases are also key outputs of this phase. Mapping of non-functional requirements to standards are also part of this phase. Domains include application, data, and integration system (IS) domains as well as network, server, storage, facilities, systems management, desktop, and other such technology domains. Architecture for non-functional requirements covers the process of evaluation and selection of a set of design patterns and building blocks that have the potential to implement a sets of non-functional requirements. Architecting for non-functional requirements also includes the process of refining non-functional requirements and mapping of non-functional requirements to specific architecture building blocks.