In this article, Oskar Dudycz explains the significance of projections in event sourcing and how they allow the interpretation of a set of facts. He also highlights how data exploration, together with projections and analytics, can provide valuable insights. Additionally, he discusses left-fold approaches and batch processing techniques to handle projections efficiently. Projections can be synchronous or asynchronous, and their state can be updated either immediately or with a delay. This guide provides a comprehensive overview of using projections and read models in event-driven architecture.
