Interoperability is at the heart of everything we do. When it works well, we don't even notice it. But watch out when it doesn't!      With today's hybrid environments, stitching together cloud and on-prem, monoliths and microservices, and everything in-between, interoperability is not a given. Also, setting up and maintaining operations in such an environment is no longer practical to be done manually. Automation in the area of onboarding and orchestrating new products and services is no longer a luxury‚ it's absolutely necessary.       Catena is an open-standards approach to making all of these disparate pieces work seamlessly together, despite their existence on different platforms. It's designed for today's multi-vendor reality. It provides a simple way to orchestrate all of this, and keep it running, even when things change constantly. We'll look at what Catena is, how it's being developed within the Open Services Alliance (OSA) and SMPTE, its embrace of open source for its SDK, and the excitement in the industry for a standardized solution to the ubiquitous challenge of interoperability among media systems.