Being a huge fan and user of Impact Mapping in various scenarios, I enjoyed the 2 changes that Tim proposed to the standard approach, although they can be misleading to practitioners.
More on that below.
Definition of terms by Tim
The 2 changes
1.”Impact” is the “Why” and “Outcome” is the “How”.
2. Additional level “WHETHER” for experiments. Although I would argue that the “WHAT” was always meant to be run as an experiment. It’s a mindmap after all.
The 2 changes visualized
The new level “Whether”
Tim had only 2 use cases for Impact Mapping 🙂