  Digitalization is forging its path in the architecture, construction,
engineering, operation (AECO) industry. This trend demands not only solutions
for data governance but also sophisticated cyber-physical systems with a high
variety of stakeholder background and very complex requirements. Existing
approaches to general requirements engineering ignore the context of the AECO
industry. This makes it harder for the software engineers usually lacking the
knowledge of the industry context to elicit, analyze and structure the
requirements and to effectively communicate with AECO professionals. To live up
to that task, we present an approach and a tool for collecting AECO-specific
software requirements with the aim to foster reuse and leverage domain
knowledge. We introduce a common scenario space, propose a novel choice of an
ubiquitous language well-suited for this particular industry and develop a
systematic way to refine the scenario ontologies based on the exploration of
the scenario space. The viability of our approach is demonstrated on an
ontology of 20 practical scenarios from a large project aiming to develop a
digital twin of a construction site.
