This deliverable provides the first iteration of the Quality Assurance and certification Framework (QAF) for Open Science professional training and qualifications. It offers a reference framework (not a prescriptive requirement) to assure the quality of training materials and resources, based in four sections or sub-frameworks important in the context of Skills4EOSC project’s principles and philosophy: Minimum Viable Skillset, FAIR-by-design and ELSI (Ethical, Legal and Social Issues), in conjunction with a comprehensive evaluation framework and learning resources catalogues. The document is a first approach to establish a set of attributes and useful questions for assessing the training materials created by Skills4EOSC. It also provides a useful reference for analysing the quality of any other Open Science course or educational resource. To come up with the initial QAF this first iteration of the deliverable defined a methodology of analysis for four sub-frameworks with essential elements, best practices and evaluation frameworks, in order to ignite a broader discussion with the stakeholders. This deliverable points out also some proposals for the community-endorsed version of the QAF and challenges for the future work and implementation.