  Various stakeholders with different backgrounds are involved in Smart City
projects. These stakeholders define the project goals, e.g., based on
participative approaches, market research or innovation management processes.
To realize these goals often complex technical solutions must be designed and
implemented. In practice, however, it is difficult to synchronize the technical
design and implementation phase with the definition of moving Smart City goals.
We hypothesize that this is due to a lack of a common language for the
different stakeholder groups and the technical disciplines. We address this
problem with scenario-based requirements engineering techniques. In particular,
we use scenarios at different levels of abstraction and formalization that are
connected end-to-end by appropriate methods and tools. This enables fast
feedback loops to iteratively align technical requirements, stakeholder
expectations, and Smart City goals. We demonstrate the applicability of our
approach in a case study with different industry partners.
