Architecturally Significant Requirement

Architecturally Significant Requirements (ASRs) are the core subset of requirements related to an entity's architecture that have critical influence on the ability of the entity to achieve its purpose. They tend to be the key elements that decide structural integrity and durability, contextual and functional utility, or operational delight.

ASRs are derived from two sources:

1. The entity's contextual architecture
2. The entity's requirements specifications

ASR's may take the form of either functional or non-functional requirements.