Ministers and public bodies must reveal the architecture behind algorithms that influence exam results, housing benefit allocations and pothole repairs, under new transparency standards. The UK government has published a transparency standard for algorithms, the series of instructions that a computer follows to complete a task or produce a single outcome. Algorithms have become the focus of increasing controversy, whether through their role in deciding A-level results last year or making decisions about benefit claims. Under the new approach, government departments and public sector bodies will be required to explain where an algorithm was used, why it was used and whether it achieved its aim. There will also be an obligation to reveal the architecture behind the algorithm. It will be tested by several government departments and public sector bodies in the coming months before being reviewed again and formally launched next year.