Terminology

2185 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 areas2185 Architecture Fundamentals77 Distributed Systems107 Data Architecture110 Cloud Architecture89 Networking88 API & Integration Architecture82 Reliability & Resilience75 Observability70 Performance & Capacity Engineering72 Security Architecture81 Cost Architecture & FinOps66 Business Architecture67 Architecture Communication67 Enterprise Architecture66 Legacy Modernization66 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 concept785 practice729 pattern362 metric125 case-study77 tool62 protocol45

70 terms shown.

Term	Kind	Topic	What it is
Structured Logging	practice	Structured Logging	Emitting logs as machine-parseable key-value records rather than formatted prose, so they can be queried, aggregated and correlated.
Symptom-Based Alerting Alert on Effects, User-Visible Alerting	concept	Alert Fatigue	Paging on what the user experiences and investigating causes with dashboards - because cause-based alerts fire in clusters during a single incident and bury the signal they exist to provide.
Tail-Based Sampling Post-Trace Sampling, Intelligent Sampling	practice	Sampling	Deciding whether to keep a trace after it completes, so that errors and slow requests are always retained while ordinary traffic is sampled cheaply.
Telemetry Cost Control	practice	Telemetry Cost	Managing the spend on logs, metrics and traces, which in mature estates can approach or exceed the cost of the infrastructure being observed.
Telemetry Cost Management	practice	Telemetry Cost	Controlling observability spend through sampling, retention tiering and cardinality limits without losing diagnostic capability.
Telemetry Pipeline Lag Ingestion Delay, Time to Queryable, Observability Freshness	metric	Observability	The delay between an event being emitted and being queryable, which bounds how quickly any decision made from telemetry can respond to reality.
Telemetry Sampling	practice	Observability	Keeping a subset of traces or events to bound observability cost, chosen so the ones that matter survive.
Trace Sampling Strategy Head Sampling, Tail Sampling	practice	Sampling	Deciding which traces to keep, since retaining all of them at scale is unaffordable and retaining a random few loses exactly the interesting ones.
USE Method	practice	Observability	For every resource, track Utilisation, Saturation and Errors — the resource-centric complement to request-centric monitoring.
Wide Event Canonical Log Line, Arbitrarily-Wide Structured Event, Unit-of-Work Event	concept	Observability	A single structured record per unit of work carrying every field that might matter, aggregated only at query time - so questions nobody anticipated remain answerable, which pre-aggregated metrics make permanen…