# Effectively-once boundary

Term `effectively-once-boundary`. A processing guarantee has a defined commit boundary and does not automatically cover external effects.

Practitioner: Adam Bellemare. Read in: *Building Event-Driven Microservices*, Ch. 7 Transactions and Effectively Once Processing.

## Skills
- [uncomplect](/skills/uncomplect)

## Sources
- Bellemare, Adam. *Building Event-Driven Microservices: Leveraging Organizational Data at Scale*. O’Reilly, 2020. [Link](https://www.oreilly.com/library/view/building-event-driven-microservices/9781492057888/). ([b5-building-event-driven-microservices](/bibliography#b5-building-event-driven-microservices))