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

62 terms shown.

Term	Kind	Topic	What it is
APM Transaction Tracing	tool	Application Performance Monitoring	Instrumentation that attributes application latency and errors to specific code paths, database queries and external calls, usually with automatic tracing.
Application Performance Monitoring APM	tool	Application Performance Monitoring	Instrumentation that attributes latency and errors to code paths and dependencies inside a service — the layer between metrics and a profiler.
Application Performance Monitoring APM	tool	Observability	Instrumentation inside the application that attributes latency and errors to specific code paths, queries and dependencies.
Artifact Repository Binary Repository, Package Registry	tool	Artifact Management	The system of record for built binaries, container images and packages, holding immutable versioned artifacts with their metadata.
Backstage-Style Service Catalogue Software Catalogue, Service Registry	tool	Internal Developer Platform	A queryable inventory of every service, its owner, its dependencies, its documentation and its operational state.
Bloom Filter	tool	Data Architecture	A compact probabilistic structure that answers "is this key definitely absent, or possibly present?" — no false negatives, tunable false positives.
Business Glossary	tool	Business Glossary	An agreed set of business term definitions, owned by the business and linked to the physical data assets that implement them.
Capability Map	tool	Capability Maps in EA	A stable, technology-neutral model of what a business does, used as the frame for assessing systems, investment and duplication.
Connection Proxy RDS Proxy, PgBouncer	tool	Cloud Databases	A pooling layer between applications and a managed database that multiplexes many client connections onto a small number of database connections.
Containers	tool	Containers	Packaging an application with its dependencies into an immutable image, and the orchestration layer that schedules those images across a fleet.
Content Delivery Network CDN	tool	Networking	A geographically distributed cache that serves content from a location near the user instead of from the origin.
Data Catalog	tool	Data Governance	A searchable inventory of datasets with their schema, owner, meaning, freshness, quality and classification.
Data Catalogue	tool	Data Catalog	A searchable inventory of data assets with their schemas, owners, lineage, quality signals and usage.
Developer Portal	tool	APIs as Products	The self-service surface where consumers discover APIs, read documentation, obtain credentials and test calls — the main determinant of adoption.
Distributed Tracing	tool	Observability	Following one logical request across every service it touches by propagating a shared trace identifier and recording timed spans.
Distributed Tracing in Practice	tool	Distributed Tracing	Following one request across every service it touches — the only tool that answers "where did the time go" in a distributed system.
Document Store	tool	NoSQL Stores	A store that keeps semi-structured documents — typically JSON — retrievable by key and queryable by their contents.
Edge Functions	tool	Edge Functions	Small units of code executed at points of presence near users — powerful for stateless work, constrained by the limits of the runtime and the difficulty of state.
Event Store	tool	Event Sourcing	An append-only store of domain events organised into per-entity streams, serving as the system of record rather than as a log beside it.
Event Stream	tool	Distributed Systems	An append-only, retained log of events that many independent consumers read at their own position, and can re-read.
Feature Store	tool	ML Platform	A system that computes, stores and serves model input features consistently for both training and inference, eliminating training-serving skew.
Flame Graph	tool	Profiling & Optimisation	A visualisation of sampled stack traces in which width represents time spent, used to identify where a program's execution actually goes.
Flow Logs	tool	Network Troubleshooting	Records of accepted and rejected network connections, giving a queryable history of what actually talked to what.
Global Traffic Management GSLB, Global Load Balancing	tool	Multi-Region Architecture	The layer that decides which region a given user reaches, using DNS, anycast or an edge network, and that performs regional failover.
Graph Database	tool	NoSQL Stores	A store whose first-class citizens are nodes and the relationships between them, making multi-hop traversal cheap.
Hardware Security Module HSM	tool	Key Management	A tamper-resistant device that generates and stores keys and performs cryptographic operations without the key material ever being extractable.
Image Registry	tool	Containers	The store from which container images are pulled, and an under-appreciated availability and security dependency of every deployment and every autoscale event.
Kubernetes K8s	tool	Cloud Architecture	A container orchestrator that continuously reconciles the running state of a cluster towards a declared desired state.
Lakehouse Table Format	tool	Open Table Formats	A metadata layer over object storage that adds atomic commits, snapshots and schema evolution to files that otherwise have none.
Message Queue	tool	Distributed Systems	A store that holds messages until a consumer processes them, decoupling producer availability and rate from consumer availability and rate.
Model Card	tool	Model Documentation	A structured document describing a model's intended use, training data, evaluation results, limitations and ethical considerations.
Mutation Testing	tool	Mutation Testing	Deliberately introducing small faults into the code and measuring how many the test suite detects, as a measure of test strength rather than test reach.
NAT Gateway Network Address Translation	tool	Networking	A managed device that lets instances in a private subnet make outbound connections without being reachable inbound.
NAT Gateways	tool	NAT & Egress	The component that lets private instances reach the internet, and one of the most reliably surprising line items on a cloud bill.
Network API Gateways	tool	API Gateways	The ingress component that terminates external connections and routes into the estate — considered from the network rather than the API-management angle.
Open Table Format Iceberg, Delta Lake, Hudi	tool	Open Table Formats	A metadata layer over object storage files that provides atomic commits, schema evolution and time travel, turning a directory of files into a real table.
OpenAPI Swagger	tool	API & Integration	A machine-readable specification format for HTTP APIs, from which documentation, clients, servers, mocks and validation can be generated.
OpenTelemetry OTel	tool	OpenTelemetry	A vendor-neutral standard and toolset for generating, collecting and exporting traces, metrics and logs.
Prompt Registry Prompt Management	tool	AI-Era Architecture	A versioned store of production prompts with their model bindings, parameters and evaluation results, so a prompt change is a reviewable, traceable, reversible deployment.
Property-Based Testing Generative Testing, QuickCheck-Style Testing	tool	Test Architecture Strategy	Asserting invariants that must hold for all inputs, then having the framework generate many inputs to try to break them.
Real User Monitoring RUM	tool	Real User Monitoring	Telemetry collected from actual browser sessions, capturing what real users on real devices and networks experienced.
Real-Time Analytics Store OLAP Serving Layer	tool	Real-Time Analytical Stores	A database built for sub-second aggregate queries over freshly ingested data at high concurrency, serving user-facing analytics rather than internal reporting.
Schema Registry	tool	Schema Registry	A central service holding message schemas with enforced compatibility rules, so a producer cannot publish a change that breaks its consumers.
Security Group Firewall Rules, NSG	tool	Networking	A stateful, instance-level firewall that allows specified traffic and denies everything else by default.
Service Control Policy SCP, Azure Policy, Organization Policy	tool	Landing Zones	An organisation-level guardrail that limits what any identity in an account may do, regardless of the permissions granted within that account.
Service Mesh	tool	Service Mesh	Moving connection-level concerns — discovery, retries, timeouts, mTLS, telemetry — out of application code and into a proxy alongside every service.
Service Mesh	tool	Architecture Patterns	An infrastructure layer of sidecar proxies that handles service-to-service networking — mTLS, retries, timeouts, routing, telemetry — outside the application.
Service Registry	tool	Service Discovery	The database of currently available service instances and their addresses, maintained by registration and pruned by health checking.
Service Scaffolding	tool	Service Templates	Generating a new service with observability, CI, security and ownership already wired in, so the standard is the default rather than a checklist.
Service Template Scaffold, Cookiecutter Template, Software Template	tool	Service Templates	A generator that creates a new service already wired into the organisation's pipeline, telemetry, security and operational conventions.
Service Virtualisation API Simulation, Mock Server	tool	Service Virtualisation	A stand-in for a real dependency that responds with realistic data, latency and error behaviour, so a service can be tested without it.
Software Bill of Materials SBOM	tool	Supply-Chain Provenance	A machine-readable inventory of every component and dependency inside a built artifact.
Software Bill of Materials SBOM	tool	Supply Chain Security	A machine-readable inventory of every component and dependency in a piece of software, including transitive ones, used to answer exposure questions quickly.
Stream Processing Frameworks	tool	Stream Processing Frameworks	Engines that process unbounded data with managed state, windowing and fault tolerance — chosen by state and time semantics rather than by throughput.
Sub-Second Aggregation Store	tool	Real-Time Analytical Stores	A database built to ingest continuously and answer aggregate queries over recent data in milliseconds, occupying the gap between OLTP and the warehouse.
Synthetic Data	tool	Synthetic Data	Artificially generated data that preserves the statistical and structural properties of real data without containing anyone's actual records.
Technology Radar	tool	Technology Radar	A published, periodically revised classification of technologies into adopt, trial, assess and hold, giving guidance without issuing a mandate.
Transformation Framework ELT Framework, SQL Transformation Tool	tool	Transformation Frameworks	A tool that turns warehouse transformations into version-controlled, tested, dependency-aware code rather than a collection of scheduled scripts.
Vector Database	tool	AI-Era Architecture	A store optimised for approximate nearest-neighbour search over high-dimensional embeddings.
Web Application Firewall WAF	tool	Network Security	A filter in front of an application that inspects HTTP requests and blocks those matching known attack patterns — useful as a layer, dangerous as a substitute.