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

3 terms shown.

Term	Kind	Topic	What it is
Compliance Scope Boundary Scope Reduction, Cardholder Data Environment	practice	PCI-DSS Scoping	The set of systems subject to a compliance regime - determined by where regulated data flows, and reducible by architecture rather than by adding controls.
PCI DSS Scope Reduction	practice	PCI-DSS Scoping	Deliberately limiting which systems handle cardholder data so that the audited estate is small, since every in-scope system carries the full control burden.
Scope Reduction	practice	PCI-DSS Scoping	Shrinking the set of systems that store, process or transmit cardholder data, because the cost of the standard is proportional to the number of systems in scope.