LIVE PRODUCT · B2B DESIGN STRATEGY
A live tool that turns UX assumptions into confidence-weighted impact ranges — so design tradeoffs are legible to the people who control budgets.
TRY IT LIVE — uxroicalculator.app
ROLE — Self-initiated, end-to-end
SCOPE — Model design, product design, build
TYPE — B2B / CX strategy tool
The live calculator — dark-mode build.
OVERVIEW
The 30-Second Version
UX teams lose influence during planning cycles because they can’t make the value of their work legible to the people who control budgets and roadmaps. I built a calculator that acts as a business translation layer — converting UX assumptions into confidence-weighted impact ranges and a comparable priority score, so tradeoffs can be evaluated transparently before engineering investment begins.
THE PROBLEM
The Problem It Solved
A UX University Substack article on impact calculators stopped me mid-scroll. The formula was clean: volume × behavior change × value per behavior. The problem was that it assumed certainty most teams don’t have.
It ignored confidence. It couldn’t compare two initiatives. And it treated UX impact as something you report after the fact rather than something you reason about before a decision gets made.
The gap it exposed was a communication problem. UX teams consistently struggle to speak the language of the stakeholders who control roadmap priorities and budget. Estimates get dismissed because the assumptions behind them are invisible. Design decisions get deprioritized because there’s no shared framework for comparing them. Leadership doesn’t distrust UX work — they distrust unverifiable claims.
I built this for the consultant or strategist who needs to walk into a room with leadership and make UX tradeoffs legible, defensible, and comparable.
ROLE
My Role
Self-initiated, end-to-end. I defined the gap, designed the model logic across three iterations, and built the interface.
BUSINESS CASE
Why It Matters
UX prioritization is a business problem as much as a design problem.
Roadmap Influence
When UX teams can’t quantify tradeoffs, prioritization defaults to whoever argues loudest. A structured model gives designers a seat at the table during planning, not just after decisions are made.
Budget Defensibility
Leadership doesn’t reject UX investment because they don’t value design. They reject it because the assumptions behind the ask are invisible. Making assumptions explicit changes the conversation.
Initiative Comparison
Most teams evaluate UX work one project at a time. The calculator surfaces comparative priority scores across initiatives, so teams can make tradeoff decisions with visible data.
Effort / Impact
Self-serve tool, no implementation cost. Designed for consultants, PMs, and CX strategists. Immediate value for any team running quarterly planning or roadmap prioritization.
THE MODEL
Three Iterations
The model went through three iterations before a single line of interface code was written. Each version failed in a specific way. Each failure pointed directly at what the next version needed to fix.
01
Version 1 — Standard ROI Formula
Impact minus cost, divided by cost. Clean and familiar. It treated all outcomes as equal and assumed certainty teams don’t have. It produced confident-looking numbers on shaky foundations.
02
Version 2 — Decomposed Value
Value was broken into three components: value created immediately, value retained over time, and value saved through efficiency gains. More honest about where business impact comes from. Still couldn’t help a team choose between two initiatives with different risk profiles.
03
Version 3 — Confidence Weighting + Priority Score
This is where the model became a decision tool. It forces teams to account for what they don’t know, not just what they hope for.
V1 — single-number output. Read as a promise, not an estimate.
V2 — ranges and effort added, but confidence was still invisible.
V3 — confidence weighting, priority score, and honest limits shipped.
The decision flow — two initiatives run through the same model, then compared.
THE PRODUCT
How It Works
The calculator guides teams through a decision-centric process. Users define a proposed UX initiative, then provide directional estimates across five inputs: affected users, anticipated behavior change, value per action, confidence level, and effort. Estimates use plain language rather than financial jargon. The output is a confidence-weighted impact range and a priority score — not a single number presented as fact.
Progressive disclosure keeps the interface focused. Plain-language explanations and contextual tooltips surface financial concepts only when needed — not upfront as a barrier. The dark-mode, SaaS-inspired interface was designed for executive review contexts where hierarchy and scannability matter.
When assumption ranges are too wide, the tool flags it. Credibility matters more than confident outputs.
Output as a range
Output is always a range, never a single number. The Priority Score surfaces which initiative is worth pursuing — assumptions visible and comparable.
Output is always a range, never a single number — dark-mode build.
The Priority Score makes two initiatives comparable, with the formula shown inline.
Two initiatives, one model
The comparison view runs both initiatives through identical logic, so the tradeoff is a matter of visible assumptions rather than competing narratives.
Built for the review room
A light-mode variant keeps the same hierarchy legible in printed decks and executive-review contexts where dark interfaces reproduce poorly.
A light-mode variant for print and executive-review contexts.
IMPACT
Three Audiences, Three Shifts
The calculator shifts prioritization conversations from opinion to structure. Making assumptions explicit — volume, behavior change, value components, confidence, effort — creates a shared model that PMs, designers, and stakeholders can reason about together.
Whether a team invests in Initiative A or B matters less than whether they made that call with visible tradeoffs, honest uncertainty, and a defensible rationale — the kind of reasoning that holds up in a leadership review.
Stakeholders
Clear assumptions, confidence-weighted outputs, no unverifiable claims.
Product Teams
Faster initiative comparisons, fewer gut-driven calls, structured tradeoff discussions.
Designers
Stronger narratives, earlier role in planning, shared language with leadership.
DEPLOYMENT
How to Deploy It
Three decisions determine whether a tool like this gets used or gets ignored.
01
Deploy at the start of planning cycles, not after
The calculator’s value is in shaping prioritization conversations before roadmap commitments are made. Teams that introduce it mid-sprint or post-planning are using it as a reporting tool. It belongs in the room when initiatives are first being compared.
02
Pair it with a facilitated input session the first time
First-time users will default to round numbers and false precision. A 30-minute working session with a PM and at least one designer before the first run produces significantly better outputs than solo use.
03
Use the output as a conversation starter, not a decision
Teams that treat the output as final will miss the point. Teams that use it to ask ‘why did Initiative A score higher — do we actually believe these confidence levels?’ will get the most value out of it.
CONSTRAINTS
Honest Constraints
This tool was built without live user testing. The model reflects design intent rather than validated behavior. That’s the most important next step — a usability session with three to five PMs or CX strategists would either confirm the input model or expose where the assumptions break down.
The current version treats all value types equally across industries. In complex B2B contexts, retention value and efficiency savings carry very different weight. A future version would allow industry-specific weighting and scenario branching.
REFLECTION
What I Learned
Designing for honest uncertainty is harder than designing for confident outputs. Every guardrail, range, and confidence toggle was a deliberate choice to resist the instinct to make the numbers look cleaner than they are.
TRY THE LIVE TOOL
TRY THE LIVE TOOL — uxroicalculator.app
Self-initiated · End-to-end design and build · B2B / CX Strategy tool