+ 01 / Intro

ToyotaGuidehub

Brought in as emergency support after an executive escalation — diagnosed a broken upstream artifact and restructured the relay that produced the surface symptoms.

Role
Senior designer
Impact
Client trust recovery · award reception
Timeline
Sep 2023 – Dec 2023
Status
Shipped

Toyota Guidehub is Toyota’s internal supply-chain operations platform. This engagement focused on the workflow — a multi-step flow letting Distribution Service Manager personas review vehicle configuration codes across linked sub-guides before approvals propagated downstream. When I joined, the project had been escalated to executive review and the consulting partner had been switched mid-engagement. Trust was eroding. I was brought in as senior emergency support to firefight.

01PC Manager approves
02PCA codes auto-generate
03DSM reviews & validates
04UUU codes + function kind assigned
05Guide approved, propagates downstream

PCA approval flow — where the engagement lived

+ The problems

02

When the surface kept breaking, I traced it upstream.

The project was in crisis, so triage came first. I identified the three most critical surface symptoms — the ones that were objectively wrong, not matters of taste — and traced them to a single upstream cause.

PROBLEM 01

Designs were being driven by individual aesthetics, not by shared principles.

Across the screens I audited in the first week, the same three fundamentals were broken everywhere. Each one is an objective rule, not a matter of taste — which is why I led with them.

01

Action clarity

Every CTA was rendered as a primary button. Users couldn't tell which action was the next step.

02

Color semantics

Green / blue / red meant different things on different screens. The user's learned mapping was broken.

03

Viewport reality

Wireframes only worked on an infinite Figma canvas. At the real 1280-px implementation breakpoint, layouts broke.

01 · Action clarity — every CTA looked equally important

One primary action per screen. Secondary actions should carry less visual weight. Across the platform, almost every interactive element was rendered as a filled primary button, leaving users with no signal about which step was actually next.

Toyota Guidehub screen with every button rendered as a primary action
Toyota Guidehub — every action rendered as primary

02 · Color semantics — same color, different meaning across screens

Color is language, not decoration. Same meaning → same color; different meaning → different color. In the platform, success- green, info-blue, and error-red each meant something different depending on the section — so the user’s learned mapping broke every time they navigated.

Toyota Guidehub screens showing inconsistent color semantics
Toyota Guidehub — green / blue / red carry different meanings per section

03 · Viewport reality — wireframes only worked on an infinite canvas

A 1440-design that breaks at the real implementation breakpoint isn’t finished. The form below was specified at full Figma canvas width, with all fields visible at once — so the bottom actions appeared reachable on paper but were never on screen at implementation size.

Form spec that exceeds a realistic screen size, drawn on infinite Figma canvas
Form spec drawn on infinite canvas — fields visible in Figma, hidden at 1280 px
Same layout with an unrealistic horizontal scroll at the real implementation breakpoint
Same layout at the real implementation breakpoint — horizontal scroll, unusable

PROBLEM 02

The hierarchy was breaking because the BRD was pre-deciding the UI.

Once the surface symptoms were named, I looked for the cause. Tracing the artifact upstream, the breakdown wasn’t on the design team’s side — it was in what the design team was being handed.

  • The BRD specified UI elements — buttons, dropdowns, modals — as part of the requirements.
  • Designers received those UI atoms and placed them all at the same hierarchy level, because the BRD asked for them equally.
  • Result: cluttered, undifferentiated interfaces. The design spec was being decided by the BRD; designers were effectively painting it.
REQUIREMENTSCLIENTSPECIFICATION (BROKEN)PMOBRD INCLUDES UI SPECSbuttondropdownmodalEXECUTION (CONSTRAINED)DESIGNER
The relay specifies solutions, not problems. Designers receive atoms, not questions.

+ The fix

03

Two moves: clean up the visible damage, then fix the artifact that produced it.

I didn’t try to fix every screen. I picked the three most objectively-evaluable problems on the surface and rebuilt the upstream BRD so the same problems stopped getting generated.

Surface fix — visual hierarchy, restored

For Action clarity specifically, I led a pass that restored a single primary action per screen and pulled secondary / tertiary actions down a tier in weight. The same logic applied to color semantics and viewport audits across the platform — but the before / after is clearest on the action-hierarchy fix.

BEFORE
Toyota Guidehub before fix — every action rendered as primary

Every action rendered as primary; no hierarchy signal.

AFTER
Toyota Guidehub after fix — primary action carries the screen, secondary actions step back

One primary action; consistent secondary + tertiary treatment.

Upstream fix — a new BRD communication framework

The surface fix would have only held if the BRD kept handing designers UI atoms. So I worked with the design and business teams to define a new BRD communication framework — one that carried outcome and context across the relay, and left the UI decision on the design side where it belonged.

✕ WHAT WAS MISSING IN THE OLD BRD

  • What the user was trying to accomplish, or why
  • Context around who the user is and what scenario they’re in
  • Anything that didn’t read as a build spec — colors, button placement, and interactions were hard-coded

✓ WHAT THE NEW BRD FRAMEWORK CAPTURED

  • Desired outcome first, not the interface
  • Problem context + intent, not just feature lists
  • UX-option pathways that allow discussion and choice
REQUIREMENTSCLIENTSPECIFICATION (FIXED)PMOwrites problem statementsDESIGN (OWNS UI)DESIGNER

THE RELAY, RESTRUCTURED

UI specs no longer cross the boundary. PMO hands over problems; design owns the UI.

+ Impact

04

Earning trust through action.

The most concrete result was the project itself — escalated to executives when I joined, rescued by the time it shipped. The more durable result was what came after.

Beyond resolving the tactical issues, I played a core role in upskilling and unblocking the design team — and the relationship outlived the engagement.

As a result, I was later asked to lead training initiatives — Designers’ Collective, Figma Fundamentals, and the Data Visualization Practicum — shaping the next generation of internal design talent.

S&A Superior Talent Appreciation Reward (STAR) recognition note
S&A Superior Talent Appreciation Reward (STAR) — Deloitte internal recognition

Surface symptoms are easier to argue about. Structural causes are easier to fix. The lesson I’d carry into the next emergency engagement: ask “where does this artifact come from?” before fixing what it produces.