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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

27 terms shown.

Term Kind Topic What it is
Cluster Multi-Tenancy Soft Multi-Tenancy, Namespace Tenancy concept Platform Tenancy Multiple teams or workloads sharing one cluster, isolated by namespaces, quotas and policy rather than by separate infrastructure.
Cluster Split Axis concept Cluster Architecture The dimension along which the estate is divided into clusters — the single decision that determines both blast radius and operational load.
Cognitive Load concept Platform Team Topologies The total amount a team must hold in mind to do its work, treated as a hard constraint on how much a team can own.
Compatibility Window Overlap Window, Dual-Version Period concept Platform APIs The period during which two versions of a caller or message must both work, set by deployment and queue mechanics rather than by how many consumers there are, which is why even a single internal consumer requi…
Contention Blind Spot Single-User Environment Blindness, Concurrency Fidelity Gap concept Developer Environments The class of defects a one-user test environment cannot exhibit at all - lock waits, pool exhaustion, races and plan flips - because they require concurrency and production-shaped data rather than correct code.
Control-Plane Amplification API Server Amplification, Fleet Agent Load Multiplication concept Platform Telemetry The property that a per-instance agent's load on a shared control plane scales with fleet size, so a change that is harmless in staging saturates the API server of the largest production cluster.
Data-Plane Fail-Static Window Mesh Survival Window, Control-Plane Outage Headroom concept Service Mesh Operations How long a service mesh keeps carrying traffic after its control plane is gone, set by certificate lifetime and pod churn rather than by anything the mesh reports as healthy.
Data-Plane Upgrade Skew Proxy Version Skew Window, Mesh Upgrade Skew concept Service Mesh Operations The window during which a mesh runs proxies of more than one version alongside a control plane that supports only a bounded range of them, which is what makes every mesh upgrade a scheduled fleet restart rathe…
Escape Hatch Drop to Primitives, Graduated Abstraction, Opt-Out Path concept Abstraction Level Choice A supported way for a team to bypass part of a platform abstraction and work with the underlying primitives - which is what makes an abstraction safe to adopt and what supplies the platform's most valuable roa…
Fleet-Wide Change Reach Platform Change Propagation concept Service Templates How long it takes a platform change to reach the majority of the services built on it - the measure of whether a platform can actually change anything.
Image Pull Amplification Per-Node Image Cost, Cold Node Pull Cost concept Container Image Strategy The property that a container image's size is paid on every node that has never seen that version, so its real cost scales with node churn and scale-out events rather than with release frequency.
Inner Loop concept Inner Loop & Outer Loop The edit-build-test cycle a developer repeats dozens of times an hour, entirely on their own machine or environment.
Inner-Loop Multiplier Frequency Times Duration, Daily Friction Cost concept Inner Loop & Outer Loop The reason inner-loop friction dominates developer productivity - the loop runs dozens of times a day, so a small duration difference multiplies into hours, while the outer loop runs a few times.
Internal Developer Platform IDP, Developer Platform concept Internal Developer Platform The curated set of self-service capabilities that lets product teams build, deploy and operate software without filing tickets against infrastructure.
Leaky Abstraction Cost concept Abstraction Level Choice What a consumer pays when a platform abstraction hides a mechanism they must nonetheless understand to diagnose or tune it.
Noisy Neighbour Resource Contention, Co-Tenant Interference, Shared-Fate Degradation concept Platform Tenancy One workload degrading others by consuming a shared resource - and specifically the resources nobody set limits on, such as control-plane capacity, node network bandwidth and local disk.
Platform Abstraction Level concept Abstraction Level Choice How far a platform hides the underlying infrastructure, and the leak-versus-flexibility trade it makes at that height.
Platform API concept Platform APIs The programmatic contract through which teams consume platform capabilities, and the thing that must stay stable while everything behind it changes.
Platform Contract concept Platform APIs The platform's promise to its consumers about interface stability, behaviour and support, treated with the same seriousness as an external API.
Platform Engineering concept Platform Engineering Building internal products that reduce the cognitive load on delivery teams — with self-service as the property that separates it from a service desk.
Platform Funding Model concept Platform Funding How internal platform work is paid for, which determines what the platform optimises for and whether it survives a budget cycle.
Preventive Control Placement concept Guardrails vs Gates Choosing where in the lifecycle a control acts — at authoring, at admission or after the fact — which determines both its strength and its cost.
Selector Dependency Label Contract, Implicit Platform Dependency concept Cluster Architecture A production dependency that exists only as a string matching a label or annotation, so it is invisible to code search and to release notes, and a platform upgrade that renames the label silently removes it.
Service Catalogue Entry concept Internal Developer Platform The record that makes a service a first-class object in the platform — owner, dependencies, docs, runbooks and health in one place with a single identity.
Service Mesh Operational Cost concept Service Mesh Operations The ongoing engineering burden a mesh imposes — upgrades, proxy debugging, latency overhead and control-plane availability — weighed against the capabilities it provides.
Ticket Ops Ticket-Driven Operations concept Self-Service Provisioning An operating model where teams obtain infrastructure and change by requesting it from another team, making that team a queue.
Voluntary Adoption Pull-Based Adoption, Chosen Uptake, Non-Mandated Usage concept Platform Adoption Usage of a platform by teams that could have chosen otherwise - which is the only measurement that indicates whether the platform is actually useful, and which a mandate permanently destroys.