Arm is where the value model stops living in a spreadsheet and starts working in real commercial conversations. After Model, most teams have the ingredients of a strong business case, but not yet an asset that travels well. The math is there, but it is still too granular for sellers, too implicit for sponsors, and too easy to paraphrase inconsistently.
This phase translates quantified value into a tighter commercial package. We choose the headline metrics that matter, tie them back to the four value pillars, surface the assumptions that need to stay visible, and make the proof path explicit. The goal is not to show more math. It is to make the value case easier to communicate, defend, and advance.
Arm usually produces an executive value summary, an ROI snapshot, a talk track, and an assumption appendix. Together, those assets help the field move from "we think there is value here" to "here is the business case, here is what drives it, here is what we have haircut or excluded, and here is how we validate it."