This guide describes workflows and best practices for developers. If you are a service developer, you will need to consult this guide and the companion Modeling Guide that describes how define models and synchronizers for services being onboarded into CORD. If you are a platform developer, you will find information about the platform services typically integrated into CORD (e.g., Kubernetes, OpenStack, VTN). Service developers may be interested in what's under the covers, but they should not need to understand these internals to develop individual services.