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

4 terms shown.

Term	Kind	Topic	What it is
Approximate-Then-Commit Stale Selection Exact Commitment, Two-Phase Precision	pattern	Materialized Views	Selecting candidates from a deliberately stale projection and committing with a conditional write against the authoritative record - which buys cheap selection without sacrificing correctness at the moment it …
Materialised View Pattern	pattern	Materialized Views	Maintaining a pre-computed, query-shaped copy of data so reads are cheap, at the cost of write amplification and staleness.
Twitter Timelines: Fan-Out on Write, Except for Celebrities Timeline Fan-Out, Hybrid Fan-Out	case-study	Materialized Views	Precomputing every user's timeline at write time is fast to read and impossible for accounts with millions of followers, so the two approaches are combined.
View Staleness Window	concept	Materialized Views	The maximum age of data in a precomputed view, which must be an explicit, monitored contract rather than an incidental property.