Reimagining JustVend

Feb 2026

This project focuses on reimagining the role of vending machines in campus life. Rather than viewing them as isolated snack dispensers, we approached them as part of a larger food-access system that supports students during time, location, and infrastructure constraints.

Although vending machines are meant to provide easy and affordable food access, they often fail at critical moments. Food is often technically "available" but practically inaccessible.
Context
Campus Infrastructure
Team
Arnav, Jashith, Rajshekhar
Role
Research & System Design
Date
Feb 2026

The Problem

Through interviews and observations during peak usage times (morning rushes, class breaks, late nights), we identified that vending machines are heavily relied upon when traditional food sources like the mess or cafés are closed, or when students are short on time.

However, the existing user flow is severely compromised. Students struggle to locate machines or know their inventory in advance. The system is entirely dependent on unstable internet connectivity, leading to frequent payment and location errors. Furthermore, the physical effort required to retrieve items—wrestling with a heavily weighted security flap—adds unnecessary friction.

Systemic Interventions

Our proposal addresses these challenges by introducing a networked, offline-first, and user-centered system. By integrating digital, physical, and ethical considerations, we aim to make campus food access more reliable.

Discovery
Resilience
Ergonomics & Ethics

Networked Discovery & Mapping

Instead of simply helping users locate machines, this feature treats vending machines as distributed nodes within a shared network. We added a map feature allowing students to explore products available at every machine.

Insight: Users search for available food based on their needs, not just physical proximity. A systemic approach makes access predictable and prevents wasted trips across campus.

Offline-First Verification

When network connectivity fails, the system falls back to an offline wallet with a preloaded balance, allowing transactions via a physical tap. Proximity verification prompts prevent "ghost dispenses" at wrong machines, and manual location inputs ensure access remains possible when GPS drops.

Insight: Dependence on perfect internet connectivity breaks the promise of convenience. The system must degrade gracefully and trust manual input when automation fails.

Physical & Financial Guardrails

We replaced the heavy security flap with an outward-opening mechanism, accommodating users who are tired or injured. Digitally, a passive spending tracker provides visibility into cumulative spend without nudging or gamification.

Insight: Vending machines are used in moments of urgency or fatigue. The design must minimize physical exertion and implement pre-set limits to prevent unintentional overspending.

The Scenario in Practice

It's 11:30 PM; the mess is closed, and you're midway through a project. Instead of walking aimlessly, you open the Networked Discovery System. You don't just look for a machine; you search for "Protein Bars". The Map Feature shows you exactly which machine has them in stock.

You arrive, but the campus Wi-Fi is down. Because the system is Offline-First, you simply tap your phone against the reader. A Proximity Verification prompt ensures you're at the right machine before the offline wallet clears the payment. Finally, instead of wrestling with a heavy, weighted security flap while balancing your phone, you easily lift the new Outward Opening Flap to grab your food.

Concluding Questions

If we had to re-imagine the vending machine service with a bigger lens—one that addresses overall student well-being and inclusivity for different roles like security guards and workers—we must ask harder questions:

Why did students express dissatisfaction even when buying discounted products? The frequent use of terms like "falling for it" and "marketing tactics" suggests that financial incentives do not mask a fundamentally extractive user experience.
Why are students who buy "healthy" items from the machines still unhappy? Furthermore, are students actually developing healthy eating habits, or are these options merely performing the aesthetic of wellness within a junk-food delivery system?
Why can't security guards and campus workers use this service when they tirelessly guard entrances and literally sit beside the vending machines inside the hostels? A system that excludes the people who physically share its space is structurally flawed.