This online resource developed during the DIAMAS project is aimed at Institutional Publishers and Service Providers (IPSPs) who want to assess their level of compliance with the Diamond OA Standard (DOAS) and the sustainability parameters. Upon registration, you will need to choose one of the two self-assessment tests (DOAS and Sustainability). You can complete both by answering the questions that prompt. At the end of the test, you will receive an email that includes the results in the form of a report. More reasons why you should use the DOAS can be found here.