--- tags: CDEvents --- # Use Cases for a coming PoC * E.g. Docker build (Jenkins) -> Signature (Jenkins) -> Deploy (Argo) -> Approval gate. (Keptn) * Contact persons: Steve Taylor * Four keys * Contact persons: Andrea Frittoli, Mattias Linnér * Remediation events are not in the spec yet * Contact persons: Alois Reitbauter * Fan in /Fan out * Contact persons: Emil Bäckmark, Mattias Linnér * ![](https://i.imgur.com/6G3c3YE.png) * This shows a case where multiple libraries (`Lib 1-6`) are integrated into a project, for example a webserver (`Application`). This project is then used in other projects (`Consuming Project 1-3`), where some might build container images containing the `Application` * We want to be able to trace backwards, that is, `Consuming Project 1` wants to know any updates made in `Lib 1-6`. * Libraries (`Lib 1-6`) wants to be able to know which libraries, applications and consuming projects that use it. For example before disclosing a security issue like the one found in log4j.