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

4 terms shown.

Term	Kind	Topic	What it is
Conflict Copy Conflicted Version, Both-Sides Preservation	pattern	Sync & Conflict Resolution	Preserving both sides of a sync conflict as separate artefacts rather than choosing a winner - the only resolution strategy that never loses user work.
Last Writer Wins	pattern	Sync & Conflict Resolution	Resolving a conflict by keeping the version with the later timestamp — simple, deterministic, and it silently discards the other change.
Resync Horizon Tombstone Retention Window, Full Resync Threshold	concept	Sync & Conflict Resolution	The age of the oldest change a server can still describe as a delta - beyond which a returning client must take a full snapshot or it will silently keep records that were deleted.
Sync Conflict Resolution	concept	Sync & Conflict Resolution	The policy applied when the same record was changed on two devices while they were disconnected, and both changes now arrive.