# Specifications for datastructures, interfaces, and file formats

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.