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Event Sourcing: Aggregates, Dynamic Consistency Boundaries, or what?
Part eleven of an event sourcing series explores how to handle consistency boundaries without relying on DDD aggregates or Dynamic Consistency Boundaries (DCBs). The author argues that the best approach depends on the actual problems at hand. Two alternatives are discussed: replacing concurrent designs with non-concurrent ones (e.g., a draft-registration phase processed by a single-threaded algorithm), and using Azure Service Bus sessions to serialize workday validation, eliminating race conditions within a consistency boundary. The post emphasizes solving real problems holistically rather than applying patterns preemptively, and shows how task-based UIs and small data models reduce the likelihood of concurrency conflicts in the first place.
Source: https://www.planetgeek.ch/2026/06/23/event-sourcing-aggregates-dynamic-consistency-boundaries-or-what. 8 Sync News only summarizes and links out; content copyright belongs to the authors and original sources.
