# Specifications for datastructures, interfaces, and file formats **NOTICE:** This documentation is deprecated in will be removed in the future. User the information available on the [ClusterCockpit Website](https://clustercockpit.org). Since most of the specifications are relevant and implemented in `cc-backend` they will use the same versioning. * **[Generic datastructure specifications](https://github.com/ClusterCockpit/cc-specifications/tree/master/datastructures)**: To be used in applications, as payloads in apis, or as file formats. * **[APIs offered by ClusterCockpit](https://github.com/ClusterCockpit/cc-specifications/tree/master/interfaces)**: REST, and Influx Line protocol descriptions. * **[HPC Job-Archive specification](https://github.com/ClusterCockpit/cc-specifications/tree/master/job-archive)**: A directory tree and file format description for a file based HPC Job Performance archive.