---
title: "Design Sprint Prototype Plan: Storevine Brief Interface Validation"
description: "Storevine Thursday morning artifact: 5 canonical roles assigned for rumble build (Tasha Maker+Stitcher for 2 prototypes; Devon Asset Collector + Stitcher support; Mei Writer; Carlos Interviewer), fidelity bar locked, Five-Act script with counterbalanced Tasks for A and D prototypes, trial run scheduled."
artifact: design-sprint-prototype-plan
version: "1.0"
repo_version: "2.15.0"
skill_version: "0.1.0"
created: 2026-05-16
status: sample
thread: storevine
context: "Storevine specialty-retail managed-intelligence service; Design Sprint week of 2026-07-13 testing Monday brief comprehension + actionability + trust after 4-week design-partner pilot"
---

<!-- PM-Skills | https://github.com/product-on-purpose/pm-skills | Apache 2.0 -->

## Scenario

Thursday morning 2026-07-16, 09:30 PT. Wednesday closed with Mei supervoting Sketch A + D as rumble and a 7-panel storyboard with two-prototype branches locked. The team invokes `tool-design-sprint-prototype-plan` before parallel build work begins.

## Prototype Role Plan

| Role | Owner | Day allocation | Notes |
|---|---|---|---|
| Maker | Tasha | 09:30-16:30 PT | Builds Sketch A + Sketch D Figma frame sets (~3.5 hrs each) |
| Stitcher | Tasha + Devon | 13:00-16:30 PT | Interactions + counterbalance logic |
| Writer | Mei | 09:30-12:30 PT | Brief copy for both prototypes (subject lines, narrative leads, action specifics) |
| Asset Collector | Devon | 09:30-15:00 PT | Real-looking specialty-retail sample data (SKUs, stores, qty) for Bayfront + Carlos network types |
| Interviewer | Carlos | 09:30-12:30 script draft + 14:00-15:00 mock-run + 15:30-17:00 trial run | Counterbalanced script |

**Doubling-up:** 4-person team; rumble build is the heaviest config. Tasha + Devon paired on Stitcher for the rumble.

## Prototype Brief

**What to build:** Both Sketch A and Sketch D realized as clickable Figma frame sets covering Panels 1-5 of the storyboard. Panels 6-7 (recall + action-taken) covered by interview probing, not prototyped.

**Fidelity bar:** Mobile-first Figma frames; email view + PDF view + web companion view per prototype. Copy final; sample data realistic; visual design on-brand.

**Time:** Tasha 3.5 hrs per prototype = 7 hrs total; Devon supports interactions + asset realism.

**NOT being built:** Real POS data integration; actual analyst-review workflow; non-storyboard panels.

## Interview Script (Five-Act)

### Welcome (5 min)

Hi [name], thanks for joining. I'm Carlos. The next 60 min is a conversation; no wrong answers. I'll show you two early versions of a Monday brief we're working on for specialty retailers. Recording today's session per the consent form. Sound good?

### Context (8 min)

1. Tell me about your Monday morning routine - what do you open first, in what order?
2. When you get a buying recommendation from a tool or report, what makes you act on it vs ignore it?
3. What's the longest you'd spend reading a Monday morning brief before moving on?

### Intro (4 min)

I'll show you two different brief formats. For each, I'll ask you to imagine you got it this Monday morning, open it, and tell me what you'd do. Think out loud.

### Tasks (32 min; 16 min per prototype, counterbalanced order)

**Task A (16 min - shown first or second per counterbalance):**
"Here's Brief Format A. It's Monday 07:30 AM. Open the email; tell me what's most important; tell me what you'd do Monday." Probe: "What's the top action? How did you know? How long did that take?"

**Task B (16 min):** Same for Brief Format D.

**Counterbalance:** Customers 1, 3, 5: A first then D. Customers 2, 4, 6 (buffer): D first then A. This controls for order-effect on the comprehension-time measurement.

### Debrief (10 min)

1. Overall reaction to both?
2. Which would you actually use? Why?
3. If you could change one thing about the one you prefer, what?
4. What would you pay monthly for this if it were real and worked?

## Trial-Run Checklist

Run with Devon as fake customer 15:30-17:00 PT.

- [ ] Both Figma prototypes reach all 5 panels per prototype
- [ ] Sample data realistic for outdoor/home/specialty-food subverticals
- [ ] Counterbalance logic correct (customers 1/3/5 see A first; 2/4/6 see D first)
- [ ] Carlos can complete full script in 55-65 min including counterbalanced Tasks
- [ ] Zoom recording + Otter transcription armed
- [ ] In-person observer setup at Storevine office (Tuesday-customer in-person; team in observer mode)
- [ ] Remote observer setup (Zoom breakout)
- [ ] Calendar invites confirmed for all 5 + buffer

## Participant Confirmation Tracker

All 5 + buffer confirmed Thursday morning.

## Decider Checkpoint

- [x] Mei approves role plan; rumble build assignments
- [x] Mei approves fidelity bar
- [x] Mei approves Five-Act script with counterbalanced Tasks
- [x] Mei approves trial-run gate
- [x] Mei confirms Friday 14:00-18:00 PT Decider window

**Signed:** Mei (founder, PM/CEO), 2026-07-16 09:55 PT.

**Build authorized. Tasha begins Figma build 10:00 PT.**