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Pattern Characteristics

Coupling

Since this pattern uses a choreographed approach but still uses synchronous communication, the coupling is reduced slight. It is slightly reduced because of the transactional requirement which must be distributed across the different services.

Complexity

This pattern exhibits high level of complexity because of the built in compensating logic in each of the services involved in the workflow. This will most likely continue to increase as new services are added or removed.

Responsiveness/Availability

Slightly increased because of the lack of orchestration, but would be diminished quite rapidly because of the built in compensating error correction logic.

Scale/Elasticity

Scalability for this pattern is slightly increased because of the lack of bottlenecks as a result of orchestration. However this pattern’s implementation is synchronous and exhibits tight coupling, and if deployed in an environment which has high error rates, then the scalability is greatly diminished.

Saga Pattern 3 - Synchronous / Eventual / Orchestration

Glossary

Term

Definition

Atomic

Bottlenecks

Elasticity

CDS

VRG

VDS

VRS

WMS

Sync