Terminology

454 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 areas454 Architecture Fundamentals16 Distributed Systems73 Data Architecture71 Cloud Architecture55 Networking13 API & Integration Architecture17 Reliability & Resilience16 Observability14 Performance & Capacity Engineering13 Security Architecture50 Cost Architecture & FinOps12 Business Architecture9 Architecture Communication8 Enterprise Architecture8 Legacy Modernization11 AI-Era Architecture15 Software Architecture & Engineering19 Architecture Patterns15 Architecture Decision-Making11 The Architect's Meta-Skills8

Kind Any concept166 practice107 pattern93 case-study26 tool26 protocol22 metric14

4 terms shown.

Term	Kind	Topic	What it is
Anti-Corruption Layer ACL	pattern	Legacy Modernization	A translation layer that converts a legacy or external system's model into your own, so its concepts do not leak into your domain.
Dual Write	pattern	Data Migration Strategies	Writing the same change to both the old and new stores during a migration, and the reconciliation that makes it trustworthy.
Strangler Facade	pattern	Strangler Fig	The routing layer in front of a legacy system that decides, per capability, whether a request goes to the old implementation or the new one.
Zero-Downtime Migration Expand and Contract, Parallel Change	pattern	Legacy Modernization	Changing a schema or system while it stays in service, by adding the new alongside the old, migrating, then removing the old.