In the construction industry, where labor shortages are becoming increasingly severe, improving work efficiency through DX is urgent. Drawing on the latest examples from industries facing similar challenges, such as oil plants and public infrastructure, as well as trends in building construction, we developed use cases aimed at enhancing work efficiency from a mid-to-long term perspective. Incorporated these use cases into a roadmap, identified tipping points in technological evolution, and defined triggers for implementing these mid-to-long term use cases.