# CS-62: Trust on a second-hand phone marketplace

Category: Commerce & marketplaces
Level: Advanced
Suggested duration: 5–7 weeks

Original UXCharan practice scenario. Validate assumptions; do not present it as a commissioned client project.

## Problem
A fictional second-hand marketplace sees buyers worried about stolen phones, hidden damage and payment fraud, while honest sellers struggle to prove a phone's condition. Explore how listings, verification and payment can build trust on both sides.

## People to learn from
Buyers and sellers of used smartphones in Indian cities

## Core scope
- Create a listing with a condition check
- browse and compare listings
- pay safely and confirm handover

## Research questions
- What do buyers check before buying a used phone today?
- How do sellers try to prove a phone is genuine?

## Edge cases
- Phone fails the condition check at handover
- buyer wants to bargain on chat
- seller account is new with no reviews

## Specific artefact
A device-condition report that is easy to read and hard to fake

## Evaluation question
Do buyers understand a phone's condition and feel safe enough to pay through the platform?

## Work to share
Problem and role; anonymised evidence; alternatives and rationale; task flow; prototype; accessibility considerations; testing findings; revisions and honest limitations.

## Request feedback
Share a viewable Figma, document or portfolio link with Saicharan on WhatsApp: https://wa.me/917093809350
Include CS-62, your name, project stage and your main feedback question. Confirm review scope, timing and any fee directly.

## Methods
- Research planning: https://www.gov.uk/service-manual/user-research/plan-user-research-for-your-service
- Research consent: https://www.gov.uk/service-manual/user-research/getting-users-consent-for-research
- Design exploration: https://www.designcouncil.org.uk/resources/the-double-diamond/
- Usability testing: https://www.nngroup.com/articles/usability-testing-101/
- Accessible forms: https://www.w3.org/WAI/tutorials/forms/
- Portfolio storytelling: https://www.nngroup.com/articles/ux-design-portfolios/