↩️Reversibility

NEW

Also known as: Rollback Capability, Undoability

The ability to reliably undo or reconstruct prior data states after changes or merges.

DESCRIPTION

Reversibility safeguards data against unintended changes and supports audits. Techniques include ACID transactions, versioned tables, event sourcing, and backups. SCD Type 2 preserves history for analytics. Rollback and restore plans are essential for incident response. Designing for immutability with append-only logs enhances reversibility. Clear lineage and checkpoints make reconstruction practical.

ALTERNATIVE DEFINITIONS

Wikipedia

In databases, a rollback is an operation which returns the database to some previous state.

Directly defines a core reversible operation in databases.

Source

Wikipedia

In computing, event sourcing is a software design pattern in which state changes are logged as a sequence of immutable events.

Describes a pattern that enables reconstruction of prior states.

Source

RELATED TERMS

Version Control Event Sourcing Transaction Audit Data ACID Transactional Rollback Immutability SCD Type 2 Backup Idempotence Change Data Capture

COMPETING TERMS

Destructive Update

KNOWLEDGE AREAS

Data Management Data Engineering MLOps Software Engineering Data Storage & Operations

TARGET AUDIENCE

Data Engineer MLOps Engineer Data Architect DevOps Engineer Data Steward

EXTERNAL SOURCES

• Wikipedia - Rollback (data management)
• PostgreSQL - Transaction and rollback tutorial
• Martin Fowler - Event sourcing explanation

TOP QUESTIONS

What is Reversibility in data systems?

It’s the ability to undo changes or reconstruct prior states reliably after modifications.

Category: Definition

Why is Reversibility important?

It limits damage from errors, supports audits, and enables safe experimentation.

Category: Relevancy

How do you achieve Reversibility?

Use ACID transactions, versioning, event sourcing, backups, and CDC for reconstruction.

Category: HowTo

What’s a common mistake with Reversibility?

Performing destructive updates without snapshots or logs undermines rollback options.

Category: Mistakes

How often should backups occur for Reversibility?

Based on RPO/RTO targets; often daily snapshots plus continuous logs.

Category: Requirements

How does Reversibility aid compliance?

It provides audit trails and the ability to reconstruct states for investigations.

Category: Compliance

What’s the role of lineage in Reversibility?

Lineage clarifies transformation steps, enabling targeted rollback and reprocessing.

Category: Relation

Is event sourcing necessary for Reversibility?

Not necessary, but it strongly supports accurate reconstruction of state.

Category: Opinion

What metrics indicate sufficient Reversibility?

Mean time to restore and success rate of rollback drills indicate readiness.

Category: Measurement