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

25 terms shown.

Term	Kind	Topic	What it is
BI Governance	practice	BI Governance	Keeping business intelligence trustworthy — through certified definitions and a semantic layer, without preventing analysts from working.
Certified Report	practice	BI Governance	A small set of reports explicitly endorsed as authoritative, with an owner and a review cadence, distinguished from everything else people have built.
Classification Propagation Label Inheritance, Lineage-Aware Classification, Derived Sensitivity	practice	Sensitivity Labelling	Carrying a column's sensitivity classification through every derived table, view and export, so that copying restricted data into an aggregate does not silently strip its protection.
Classification Propagation Labels Travelling Through Lineage, Derived-Data Sensitivity	practice	Sensitivity Labelling	Carrying a sensitivity label through every derivation, so a restricted column copied into an aggregate, a training set or an export remains subject to its controls.
Code List Governance	practice	Reference Data	Managing the small shared enumerations — currencies, country codes, statuses, product categories — whose uncontrolled change breaks systems quietly.
Contract Enforcement Point Producer-Side Enforcement, Shift-Left Contract Checking	practice	Data Contracts	Where a data contract is actually checked - which determines whether a breaking change fails in the producer's build or in a consumer's pipeline at 2 a.m.
Data Observability	practice	Data Observability	Continuous automated monitoring of data health — freshness, volume, schema, distribution and lineage — designed to detect silent data failures.
Dataset Deprecation Policy Dataset Sunset Policy, Retirement Notice Period	practice	Data Products	The written rule stating how a published dataset or column is retired - the notice period, how consumers are identified, and what happens if they do not move - without which nothing can ever be removed.
Deletion Verification	practice	Retention & Purge	Proving that a deletion actually removed the data everywhere it existed, which is a harder problem than issuing the delete.
Deterministic Tokenisation	practice	Tokenisation & Masking	Replacing a sensitive value with a stable surrogate so the same input always yields the same token, preserving joins while removing the value.
Domain Publishing Readiness Data Product Admission Bar, Domain Onboarding Gate	practice	Data Mesh	The small set of capabilities a domain team must demonstrably have before it is allowed to publish a data product, which is what separates decentralised ownership from renaming existing teams as domains.
Governed Metric Set The Twenty Numbers, Governance Boundary	practice	Self-Service vs Governed	The deliberately small collection of metrics defined once with an owner, with everything else left explicitly self-service - because governing all analysis becomes a bottleneck and is abandoned.
Label Inheritance Classification Propagation, Sensitivity Inheritance	practice	Sensitivity Labelling	Automatically assigning a derived dataset the highest sensitivity of its inputs, so that aggregates and transformations do not silently escape the controls that applied to their sources.
Master Data Management MDM, Golden Record	practice	Master Data Management	Establishing a single authoritative version of core business entities that appear inconsistently across many systems.
Metadata Harvesting	practice	Data Catalog	Populating a catalogue automatically from the systems that hold the data, because anything requiring manual entry will be incomplete within a quarter.
Metric Certification Certified Metrics, Trusted Tier	practice	BI Governance	Marking a small set of metrics and datasets as governed and authoritative, so that exploration stays free while anything asserted about the business comes from a controlled definition.
Pipeline Anomaly Detection	practice	Data Observability	Monitoring row counts, distributions, freshness and schema for unexplained change, because data pipelines fail silently far more often than they error.
Producer-Enforced Contract Contract That Fails the Build, Upstream Enforcement	practice	Data Contracts	A data contract checked in the producing team's own pipeline, so a breaking change is blocked before it ships - without which the contract is documentation and the breakage is discovered downstream.
Retention and Purge	practice	Retention & Purge	Deleting data when its lawful or business purpose has ended, and being able to prove that it happened.
Seasonality-Aware Threshold Same-Weekday Baseline, Seasonal Band	practice	Data Quality Dimensions	Setting a data quality alarm against the comparable period rather than the previous one, so that a business's own weekly and monthly rhythm does not generate alerts nobody can act on.
Sensitivity Labelling Data Classification Tagging	practice	Sensitivity Labelling	Attaching a machine-readable classification to data at the column or asset level, so that downstream controls can be applied automatically.
Steward Accountability	practice	Data Stewardship	Making stewardship a defined role with time, authority and consequences, rather than a title added to somebody's existing job.
Stewardship Escalation Path Data Decision Route, Definition Arbitration Path	practice	Data Stewardship	The named route and time limit by which a disagreement a steward cannot settle reaches someone entitled to decide it, without which stewardship produces opinions rather than rulings.
Survivorship Rules Golden Record Rules, Attribute Precedence	practice	Master Data Management	Per-attribute rules deciding which source's value wins when several systems hold a different value for the same entity - the part of master data management that determines whether the golden record is trusted.
Term Definition Ownership	practice	Business Glossary	Assigning one accountable owner per business term, so that a disagreement about meaning has a route to resolution rather than a standing argument.