# Glossary

```{warning}
This project is still evolving, so these docs may be incomplete or out-of-date.
```

## Acronyms

* `DUT`: Device Under Test

## Entities

* `exporter`: A linux service that exports the interfaces to the DUTs.
  An exporter connects directly to a Jumpstarter server or directly to a client.

* `client`: A Developer or a CI/CD pipeline that connects to the Jumpstarter server
  and leases exporters. The client can run tests on the leased
  resources.

* `controller`: The central service that authenticates and connects the exporters
  and clients, manages leases and provides an inventory of available exporters and
  clients.

## Concepts

* `Device`: a device that is exposed on a exporter, the exporter enumerates those
  devices and makes them available for use in tests. Examples of resources can be:
  * network interface
  * serial port
  * GPIO pin
  * Storage device (USB Muxer, SD-Wire, etc.)
  * a CAN bus interface

* `Lease`: a time limited reservation of a exporter, a lease is created by a client
  and allows the client to use the exporter resources for a limited time.

* `DriverClass`: is the name of the driver class that is used to interact with
  the exporter resources.