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
Critical Path Analysis Span Critical Path, Blocking Time Analysis	practice	Distributed Tracing	Identifying which spans in a trace actually block the response, as opposed to running in parallel, so optimisation effort targets the work that determines latency rather than the work that merely appears slow.
Distributed Trace	concept	Distributed Tracing	A causally-linked record of one request's path across services, composed of spans that carry timing, attributes and parent relationships.
Distributed Tracing in Practice	tool	Distributed Tracing	Following one request across every service it touches — the only tool that answers "where did the time go" in a distributed system.
Span Attribute Budget Trace Attribute Discipline, Span Cardinality Budget	practice	Distributed Tracing	A deliberate limit on how many spans a request emits and how many attributes each carries, set so that traces stay readable and affordable rather than complete.
Span Link Trace Link, Span Reference	concept	Distributed Tracing	A pointer from one span to another span in a different trace, recording a causal relationship where no single enclosing parent exists - the mechanism that keeps batch jobs, fan-in consumers and delayed asynchr…