Choreography-driven business process management framework based on blockchain

Aiming at the problems of high process instantiation cost and difficult version iteration in the current blockchain-based business process management systems, a choreography-driven blockchain business process management framework was proposed.The framework included a general smart contract that could be used to store business process choreography meta-models, model component evolution versions, and instance execution status.The cost of process model instantiation on the blockchain was significantly reduced by delaying model elements instantiation timing and integrating multiple process instances.At the same time, a version control method based on model data reuse and voting mechanism was introduced, so that process instances of different versions of orchestration models could be created in a single smart contract.A real case validates the effectiveness of the framework in distributed business process management.