Terminology

2205 terms, tools, patterns and metrics an architect is expected to use precisely. Each one gets a short explanation of what it is, and — where it matters — what it is commonly confused with. Search filters as you type; the column headers sort.

All areas2205 Architecture Fundamentals77 Distributed Systems107 Data Architecture110 Cloud Architecture94 Networking88 API & Integration Architecture82 Reliability & Resilience75 Observability70 Performance & Capacity Engineering72 Security Architecture86 Cost Architecture & FinOps71 Business Architecture67 Architecture Communication67 Enterprise Architecture66 Legacy Modernization71 AI-Era Architecture69 Software Architecture & Engineering71 Architecture Patterns71 Architecture Decision-Making63 The Architect's Meta-Skills61 Delivery & Release Engineering66 Platform Engineering & Developer Experience70 Testing & Quality Architecture66 Data Platform Architecture64 Streaming & Real-Time Data69 Data Governance & Semantics69 Frontend & Experience Architecture66 Edge, Mobile & IoT68 Regulatory & Data Protection Architecture65 Assurance, Audit & Model Risk64

Kind Any concept794 practice734 pattern368 metric125 case-study77 tool62 protocol45

5 terms shown.

Term	Kind	Topic	What it is
Blast Radius Failure Scope, Impact Radius, Containment Boundary	concept	Fault Isolation	The set of users, tenants, regions or services that a single failure can affect - the quantity that distinguishes an incident from a catastrophe, and the one that architecture can most directly control.
Blast Radius Analysis	practice	Fault Isolation	Determining, for each component, exactly what fails and who is affected when it fails completely.
Concurrency Limiting	pattern	Fault Isolation	Bounding the number of simultaneous in-flight operations so that overload produces fast rejection rather than resource exhaustion.
Fault Domain	concept	Fault Isolation	A boundary within which a single failure is contained, defined by the infrastructure and dependencies that components inside it share.
Recovery Cost Per Unit Remediation Cost, Recoverability, Time-to-Repair Per Node	concept	Fault Isolation	The effort required to restore one affected instance, device or tenant - the multiplier that decides whether a wide blast radius is an incident or a catastrophe, and the factor most often left out of risk asse…