Automated Testing Laboratory is an autonomous device to help with developing, testing and releasing images of operating system. It was primarily designed for Tizen, but turned out to be so generic that can be used with any operating system.
The basic idea behind the device is to do automated testing on many boards at once. In order to achieve that, there is a setup of different boards, which can be flashed with images to be tested. Next, the compliance tests are run on each individual board and the results are published. All the steps, from downloading and flashing images to uploading and running tests and finally publishing results, are fully automated and can be run without any attention from operator.