This document discusses using IBM Operational Decision Manager (ODM) to manage the business logic and rules that govern smart contracts on blockchain networks. It proposes externalizing smart contract business logic in ODM rule engines to make it more accessible to business stakeholders. It provides an example use case of managing a vehicle lifecycle on blockchain using ODM rules to detect suspicious ownership transfers. The document outlines steps to integrate an ODM rule execution server with Hyperledger Fabric, deploy rules through blockchain transactions, and update rules over time as business requirements change.