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

3 terms shown.

Term	Kind	Topic	What it is
Deprecation Brownout Sunset Rehearsal, Scheduled Dark Window	practice	Backward Compatibility	An announced, time-boxed window in which a deprecated interface returns its retirement error, used to convert an abstract sunset date into a failure the consumer sees in their own monitoring.
Semantic Diffing of API Schemas	practice	Backward Compatibility	Comparing the published contract between builds and failing the build on a breaking change, so compatibility is mechanical rather than remembered.
Tolerant Reader	pattern	Backward Compatibility	A consumer that ignores fields it does not recognise and depends only on what it actually needs, so a producer can add to a contract without breaking it.