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
Constraint Removal Risk Chesterton's Fence, Load-Bearing Friction, Safety-Providing Limit	concept	Systems Thinking	The hazard that a limit, gate or slowness being removed was accidentally preventing something nobody documented - so the improvement's cost lands somewhere unrelated and later.
Emergent Failure Interaction Failure, Composition Failure	concept	Systems Thinking	A failure produced by the interaction of components that are each behaving correctly - the class that component review cannot find and that dominates outages in mature systems.
Feedback Loop	concept	Systems Thinking	A circular causal chain in which an effect influences its own cause, producing behaviour that cannot be understood by examining components in isolation.
Review Scope Mismatch Blast-Radius Blindness in Review, Scope-Blind Approval	concept	Systems Thinking	A control that inspects the mechanics of a change while the risk lives in its reach - so the review passes honestly and the change still destroys something.
Systems Thinking in Architecture	practice	Systems Thinking	Reasoning about a system as a set of interacting feedback loops rather than as a collection of components, so that second-order effects are anticipated.