This work package aims to define the requirements for EdgeAI-Trust so that they drive the research in the project, as well as use case and validation activities. For every sub-system addressed in the project, there will be a task where the involved partners define the requirements and specification in close coordination. Industrial partners will steer the requirements engineering process based on their own experiences as suppliers but also on the insights from the requirements of their customers. Needs of the academic community will be brought in by the research partners. The task will gather top-down requirements (i.e., from the market, operator, cities pilots, and regulation, standardization and use-cases) and based on them, it will develop and specify technology-specific requirements for the implementation of the EdgeAI-Trust.