A Massive Open Online Course (MOOC) is an online course aimed at unlimited participation and open access via the web. In addition to traditional course materials such as videos, readings, and problem sets, MOOCs provide interactive user forums that help build a community for students, professors, and teaching assistants. MOOCs are a recent development in distance education. Many MOOCs use video lectures, employing the old form of teaching using a new technology. Because of massive enrollments, MOOCs require instructional design that facilitates large-scale feedback and interaction. This output regards the production of a collaborative Massive On-line Open Course. The COMPASS MOOC will offer trainees valuable, validated, readily applicable competences and skills, within a highly motivating and flexible environment. The course will be available in seven languages (EN, GR, DE, NL, ES, FR, IT) via the EdX MOOC open source platform. The MOOC that will be developed on the context of COMPASS will constitute of two parts. The first part will concentrate on the subject of Standards-based Learning Opportunity descriptions. The second part will concentrate on the developed services and tools.