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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
Cutover Planning practice Cutover Planning The plan for the moment of switching — including the decision points, the rollback, and the rehearsal that makes it survivable.
Cutover Runbook practice Cutover Planning The step-by-step plan for a migration event, including verification points, decision criteria and the rollback path, rehearsed before it is used.
Point of No Return Rollback Horizon, Commit Point practice Cutover Planning The step in a migration after which rollback would lose data or state - identified in advance, with a named authoriser and a stated recovery plan beyond it.
TSB 2018: A Big-Bang Migration That Was Not Reversible TSB IT Migration case-study Cutover Planning A UK bank moved millions of customer accounts to a new platform in a single weekend cutover, and the failure locked customers out for weeks.