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

4 terms shown.

Term	Kind	Topic	What it is
Data Subject Access Request DSAR, SAR	concept	Data Subject Rights	An individual's request for a copy of the personal data an organisation holds about them, which must be fulfilled completely within a statutory deadline.
Deletion Horizon Erasure Horizon, Last-Copy Latency	metric	Data Subject Rights	The elapsed time after an erasure request until the last copy of the record is gone or unreadable, set by the longest-lived derived copy rather than by the live database.
Subject Access Fulfilment	practice	Data Subject Rights	The operational path from a request to a complete, verified, delivered response within the statutory period, across systems that were never designed for it.
Suppression List Do-Not-Reprocess List, Erasure Tombstone Registry	pattern	Data Subject Rights	A durable record of identifiers that must not be re-ingested, preventing an in-flight or replayed pipeline from recreating data that was just erased.