Part 8/18:

The speaker advocates for semantic layers that clearly interpret event fields, reducing ambiguity and ensuring that everyone “speaks the same language.” These semantic layers help define what each event or metric means, promoting consistency and reducing interpretation errors.

Embracing Immutable, Stable, and Context-Rich Events

A core concept is the importance of immutable and stable events within data systems, especially in the context of data mesh principles. Events—like order creations—should be fixed and unchangeable once published to preserve their integrity. This immutability ensures that downstream consumers receive consistent and reliable information.