Chapter 9. Life in a Blockchain Network

Your Fabric network should now be set up and running your application connecting different entities through a smart contract and serving users through a web interface. In addition, to help your developers and system administrators maintain code, push updates, and manage network configuration, you should have instituted a process whereby system testing and maintenance can be done with safeguards in place and no interruption to service.

Yet, this will not be the terminal state of your application. Needs and expectations evolve, and this is especially true for an application that involves multiple collaborating entities, all of whom will have differing requirements at different points in time. In addition, it is expected that software itself will continually change and evolve even if the nature and function of an application are kept intact. Finally, any distributed service-oriented application (a description that can be applied to any Hyperledger Fabric...