Terminology

2225 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 areas2225 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 Architecture74 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 Architecture69 Streaming & Real-Time Data69 Data Governance & Semantics74 Frontend & Experience Architecture66 Edge, Mobile & IoT68 Regulatory & Data Protection Architecture65 Assurance, Audit & Model Risk69

Kind Any concept801 practice736 pattern377 metric127 case-study77 tool62 protocol45

11 terms shown.

Term	Kind	Topic	What it is
Admission Policy	pattern	Policy as Code	A rule evaluated at the moment a resource is created or changed, which rejects the request rather than reporting on it afterwards.
Blue-Green Deployment	pattern	Deployment Strategies	Two complete production environments where traffic is switched from the old to the new in one step, and back just as fast.
Canary Release	pattern	Progressive Delivery	Routing a small fraction of production traffic to a new version and promoting only if its metrics hold against the incumbent.
Comparative Canary Control-Group Canary, A/B Rollout Analysis, Baseline Comparison	pattern	Progressive Delivery	Evaluating a canary against a simultaneously-running control group of the same size rather than against fixed thresholds, so environmental variation cancels out and genuine regressions are detectable at much s…
Deployment Pipeline CD Pipeline, Build Pipeline	pattern	Pipeline Architecture	The automated path a commit travels from source to production, where every stage is a chance to reject the change and no stage can be skipped.
Expand and Contract Parallel Change, Expand-Migrate-Contract	pattern	Database Migration Under CD	Changing a schema or contract in three deployable steps so old and new code are correct at every moment.
Feature Flag Feature Toggle	pattern	Progressive Delivery	A runtime switch that separates deploying code from releasing behaviour.
Pipeline Fan-Out	pattern	Pipeline Architecture	Splitting independent verification work to run in parallel, bounded by what genuinely has no ordering dependency on anything else.
Reconciliation Loop	pattern	GitOps	A controller that continuously compares declared state with actual state and acts to close the gap, replacing deployment as an event with convergence as a property.
Release Ring	pattern	Progressive Delivery	An ordered cohort of users a change reaches before the next one, chosen so that early rings would notice a fault and tolerate it.
Release Train	pattern	Deployment Strategies	A fixed-cadence release where whatever is ready by the departure time ships, and whatever is not waits for the next one.