Hybrid Synchronous Model

Definition ∞ A hybrid synchronous model combines elements of both synchronous and asynchronous communication in a distributed system. This model for distributed systems, including certain blockchain protocols, operates with periods of synchronized communication where messages are guaranteed to arrive within a known time bound, interspersed with periods where message delivery times are uncertain. It seeks to leverage the benefits of rapid agreement during synchronous phases while tolerating network delays or temporary partitions. This approach balances performance with resilience.
Context ∞ The adoption of hybrid synchronous models in blockchain design aims to address the limitations of purely synchronous or asynchronous consensus protocols, particularly in real-world network conditions. Discussions often focus on defining the precise bounds for synchronous periods and the mechanisms for transitioning between modes. Future research will likely explore dynamic adjustments to these models based on real-time network health and performance metrics.