Atomicity

Kind: principle

Layer: Atomic Boundary

Record: architecture:atomicity

Severity: mandatory

Scope: transaction, operation, workflow

Canonical: Ontology

A design rule that the steps of a state change either all take effect or none do.

Listed in Architecture principles, after Idempotency and before ACID.

Requires

• Transaction Boundary

Reinforces

• Consistency
• Correctness

Enables

• All-or-Nothing State Change

Conflicts with

• Partial Commit

In tension with

• Distributed Scalability

Tensions

• Atomicity / Distributed Scalability

Contracts

• Atomic Boundary

Violated by

• Partial Commit

Refactored by

• Introduce Transaction Boundary
• Saga Pattern
• Compensating Transaction

Severity

• mandatory

Category

• Transactions / State / Concurrency

Required by

• ACID

Reinforced by

• Unit of Work Pattern

Linked from

• Correctness / Determinism / Verification
• Transactions / State / Concurrency
• Transactions / State / Concurrency
• Architectural Clusters
• Severity levels
• The resolutions