As suggested throughout the seven VDAD steps, many general-purpose visual tools exist that can support the process, for instance, online whiteboards.
However, there are not many that support modeling based on Domain-Driven Design (DDD)1 patterns (strategic and tactical DDD), as well as stakeholder and value modeling, all in one tool. Therefore, we would like to point out our open source tool Context Mapper, which supports many VDAD steps with its Context Mapping Language (CML) and generators that automatically create Stakeholder Maps and Value Impact Maps. Check it out here.
Domain-Driven Design: Tackling Complexity in the Heart of Software, Eric Evans, 2003, https://www.amazon.de/-/en/Eric-Evans/dp/0321125215 ↩