Terminology

2185 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 areas2185 Architecture Fundamentals77 Distributed Systems107 Data Architecture110 Cloud Architecture89 Networking88 API & Integration Architecture82 Reliability & Resilience75 Observability70 Performance & Capacity Engineering72 Security Architecture81 Cost Architecture & FinOps66 Business Architecture67 Architecture Communication67 Enterprise Architecture66 Legacy Modernization66 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 concept785 practice729 pattern362 metric125 case-study77 tool62 protocol45

5 terms shown.

Term	Kind	Topic	What it is
Adaptive Admission Level Priority Admission Threshold, Collaborative Load Shedding	pattern	Queueing Theory	A load-dependent priority threshold that a service publishes back to its callers, so requests that would be rejected downstream are never sent and upstream work is not wasted.
Admission Queue Virtual Waiting Room, Login Queue, Front-Door Queue	pattern	Performance & Capacity	Holding excess arrivals in an explicit, communicated queue and admitting them at a rate the system can serve - converting an overload failure into a wait, which is a far better outcome and must be built in advance.
Caching Strategy	pattern	Performance & Capacity	The chosen pattern for how a cache is populated, read and invalidated — cache-aside, read-through, write-through or write-behind.
In-Memory Reservation Service Inventory Reservation Service, Single-Owner Counter, Memory-Speed Allocation	pattern	Database Performance	Moving a heavily-contended counter or inventory pool into a single-owner in-memory service that serialises decisions at memory speed and persists asynchronously, trading a small durability window for orders of…
Segment-Isolated Serving Outlier Tenant Path, Heavy-User Isolation	pattern	Tail Latency	Giving a consistently slow population its own path - pool, precomputed view, or query strategy - rather than optimising the shared path to accommodate it.