Pipelines in architectural patterns

Unidirectional data flow is integral to several architectural patterns, including Pipes and Filters, Choreographed Event-Driven Architecture (EDA), Command Query Responsibility Segregation (CQRS), and Model-View-Controller (MVC). Each pattern relaxes or enforces certain constraints such as type, identity, and temporal order of data packets, allowing for flexible data processing and transformation in various use cases. Pipes and Filters involve strict stepwise processing, while EDA and CQRS introduce complexity and flexibility by aggregating and storing events. MVC entirely abandons type and identity constraints in favor of broader functionality.