Now it is time to accelerate the idea and validate hypotheses in application tests. This includes drawing up a business case and building the first prototype. This step serves primarily to test the idea's chances of success and railway relevance in advance and formulate the idea into a viable concept. At this stage, many ideas are still incomplete, or even fail. The right advice and support can give project team members the skills they need. At Demo Day, our innovation teams finally get a chance to inspire others with their vision.