Project overview
Ogun farm gate vs city price compare.
- Platform
- Mobile app · Android-first · portrait
- Screens
- 11 screens + 1 unhappy path (12 frames)
- Features
- 3 core features
- Bottom navigation
- Prices · Compare · Alerts · Profile
- Prototype
- 4 linked flows
Build order: Auth (screens 1–4) → nav tabs (5–8) → core flow (9–11) → unhappy path → link prototypes.
Problem & primary user
Ogun farmers near Ijebu and Ewekoro sell at gate price below city markets. National price apps may skip Ogun corridors.
Primary user
"Sade, a 38-year-old yam farmer near Ewekoro who sells at farm gate."
Geographic scope: State-level (Ogun)
Goals
User goal: See farm gate vs Abeokuta and Lagos market prices for her crop.
Business goal: Buyers license price feeds; cooperatives sponsor alerts.
Success: Farmer compares gate offer to Abeokuta price.
Market context
- Question
- Answer
- Who pays
- Buyers license feeds; cooperatives sponsor alerts.
- Why not WhatsApp
- Farmers sell at gate without knowing Abeokuta market same day.
- Design focus
- Farm gate vs Abeokuta city price for Ogun corridors.
Competitors to check:
- Middleman offer (default)
- Farm Price Alert brief (national crops)
- Market visit (costly trip)
Validate before you design
Interview 3–5 people who match your primary user. Update this brief if interviews contradict it. Do not start hi-fi until you complete the confirmation below.
- Validated user (name, age, city)
- Problem in one sentence
- One interview quote
- Success metric for your test
- Primary colour and tone
- One competitor you checked
Interview prompts
- "Walk me through the last time this happened."
- "What did you use instead? WhatsApp, paper, or nothing?"
- "What would make you trust this on a cheap Android phone?"
- "What would stop you from using this every week?"
Features & scope
v1 · three features
- Daily price for selected crop in Ogun markets
- Compare farm gate offer vs city market
- Alert when city price rises above threshold
Out of scope
- Commodity trading desk
- Loans
- Nationwide every crop v1
Screens
Design every row in wireframe, high-fidelity UI, and prototype (where the flow applies).
| # | Layer | Screen | What to show |
|---|---|---|---|
| 1 | Auth | Splash Screen | App logo, name, and tagline for Ogun Farm Gate Price. |
| 2 | Auth | Onboarding (1 screen) | Explain the app in one sentence. One Get Started button. |
| 3 | Auth | Sign Up Screen | Name, phone number, state, and PIN. No email required. |
| 4 | Auth | Sign In Screen | Phone number and PIN. Forgot PIN link. |
| 5 | App shell | Prices (tab) | Crop picker and today price cards for Ogun markets. Show bottom nav with Prices active. |
| 6 | App shell | Compare (tab) | Farm gate vs Abeokuta vs Lagos side-by-side bars. Show bottom nav with Compare active. |
| 7 | App shell | Alerts (tab) | Set spread threshold and notify toggle. Show bottom nav with Alerts active. |
| 8 | App shell | Profile (tab) | Farmer name, crops, and farm LGA. Show bottom nav with Profile active. |
| 9 | Core flow | Prices · Today | Farm gate and market columns for crop. Show bottom nav on post-sign-in screens. |
| 10 | Core flow | Compare · Sell decision | Side-by-side sell now vs wait bars. Show bottom nav on post-sign-in screens. |
| 11 | Core flow | Alert · Set | Notify when spread exceeds threshold. Show bottom nav on post-sign-in screens. |
Layers: Auth = 1–4 · App shell = 5–8 · Core flow = 9–11
Prototype flows
Link these in Figma. Examiners should click through without your voice-over.
Flow 1 · App entry
Flow 2 · Core task (all three features)
Core flow screens: Prices · Today · Compare · Sell decision · Alert · Set
Flow 3 · Navigation
Link every nav tab so examiners can tap each bottom nav item. Tabs: Prices · Compare · Alerts · Profile
Flow 4 · Unhappy path
Trigger the unhappy path edge case and link to that screen.
Unhappy path
Design this as its own screen state (frame 12):
No price today. Show: Last updated [date]. Prices refresh market days.
Link in Flow 4.
Design system
- Colour
- You choose. Keep it simple and readable.
- Type
- You choose. Keep body text easy to read on a phone.
- Tone
- Design for your user, not for a tech audience.
Reuse on every screen:
- Primary button (active and disabled states)
- Input field (empty, filled, and error states)
- Card or list item used across the app
- Navigation bar with correct labels and icons
- Empty state: what the screen looks like with no data
Submit & defense
Deliverables
| # | Deliverable | What good looks like |
|---|---|---|
| 1 | Wireframes | Every screen in this brief, plus the unhappy path. Layout and labels clear. |
| 2 | High-fidelity UI | Same frames polished. You choose colour and type. Bottom nav on every post-sign-in screen. |
| 3 | Prototype | Four linked flows (entry, core task, navigation, unhappy path). Examiners can use the app without your voice-over. |
| 4 | AI prototype | Figma Make: at least 2 screens. Share link. |
| 5 | Case study (1 page) | Problem · User · Who pays · Competitors · Solution · One design decision |
| 6 | Presentation (6–8 slides) | Name · Problem · User · Solution · Key screens · Flow demo · One decision |
Before you present
- Every screen designed in wireframe and hi-fi
- Unhappy path screen designed and linked in the prototype
- Four prototype flows linked end to end
- At least one empty state on a list tab
- Shared components reused: button, input, card or row, bottom nav
- Case study names who pays and one competitor you checked
- You can explain one design decision in critique (why, not what)
- Completed 5 user interviews or 1 usability test
- Checked at least one competitor listed under Market context