architecture decision records (ADRs)

Architecture Decision Records (ADRs) are documents that capture key choices made during a project's design process. They explain the reasons behind decisions about how a system is built, including the options considered and the rationale for selecting a particular approach. ADRs help teams understand past decisions, maintain consistency, and adapt as projects evolve. They serve as a clear, organized way to document architectural logic, making it easier for current and future team members to understand the "why" behind the system’s structure.