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

5 terms shown.

Term	Kind	Topic	What it is
Disposition Decision	practice	The Six Rs	Choosing one of the standard migration treatments for each application, on the basis of its value, condition and the constraint that is actually binding.
Relocate Disposition Seventh R, Hypervisor-Level Migration, Cluster Relocation	pattern	The Six Rs	The migration treatment that moves a hypervisor-managed estate to a hypervisor-compatible target with the application and operating system unchanged, so the unit of work is the cluster rather than the machine …
Repurchase Displacement Cost Buy-Instead-Of-Build Migration Load, SaaS Substitution Overhead	concept	The Six Rs	The data migration, process change, integration rebuild and customisation retirement that replacing a bespoke application with a purchased product creates, none of which appears in the licence comparison that …
Retire-First Portfolio Bias Cheapest Sufficient Option, Retire and Retain Default	practice	The Six Rs	Assigning every application the cheapest modernisation option that satisfies the business driver, with a written justification required for anything more - which resolves most portfolios into retire and retain…
Six Rs Decision Migration Disposition	practice	The Six Rs	Classifying each application into rehost, replatform, refactor, repurchase, retire or retain, based on value and effort rather than on preference.