← Back
Scan&Go Lists hero Scan&Go Lists — mobile hero
Case Study

Scan&Go Lists

Integrating Woolworths shopping lists into Scan&Go for a more seamless and ergonomic shop.

Role Product Designer
Team Product, Engineers, Service Design, UX Research
Outcome Improved usability and customer satisfaction. 'Voice of customer' (VOC) score increased 16% over a year from 63 to 73.

Overview

Scan&Go enables Woolworths customers to scan items in-store as they shop and checkout quickly at a dedicated kiosk. It was originally launched as a standalone app and Scan&Go users would also have the Woolworths app opened in parallel so they can access their Woolworths shopping lists during an active Scan&Go session.

The problem

Later on, the standalone app was decommissioned and Scan&Go became integrated into the Woolworths app. This implementation led to a major issue of customers being unable to access their Woolworths shopping lists during an active Scan&Go session. Only Scan&Go's own rudimentary shopping list tool can be accessed. This issue became a top 3 customer detractor, risking adoption of both Scan&Go and Woolworths app lists. It directly challenged WooliesX's strategic goal of orchestrating customers seamlessly across the ecosystem.

The design process

Utilising the double-diamond framework, I first explored the problem space through research, then converged on key insights before diverging again to explore solutions.

Design process — double diamond diagram showing Discover, Define, Design and Deliver phases

During the discovery phase, primary research was not required as we relied upon the 'Voice of Customer' (VOC) feedback and previous Scan&Go UX research. Whilst I collaborated with stakeholders, UX research and Service Design, the entire design process involved an even tighter collaboration with my squad's tech lead and the Scan&Go squad. Technical governance was required due to code complexities and ownership of the Scan&Go codebase. As a result of this, my design explorations had to be scaled back or descoped to achieve technical feasibility.

My role

•Defined the problem space with proprietary research, VOC feedback, competitive analysis and journey mapping in order to identify opportunity areas for the solution.
•Created design concepts and complex prototyping for user testing and stakeholder review.
•Collaborated with business stakeholders, engineers and the Scan&Go squad to balance complex requirements to align on a feasible approach.
•Partnered with service design and UX research to run remote and in-store testing.
•Collaborated closely with business analysts and engineering throughout the development phase to resolve impediments.

Research and insights

•VOC feedback revealed anxiety amongst Scan&Go shoppers about having to exit their Scan&Go session to access their Woolworths list. They risk losing their Scan&Go basket they've built during the process.
•Some users rebuild their shopping lists in Scan&Go, duplicating effort after already creating their lists in the Woolworths app.
•Shoppers juggled their phones with the trolley, bags and products. This highlighted the cognitive and ergonomic challenges one would face when using shopping lists in Scan&Go.
•Customers wanted their shopping lists to auto-check off items as they were scanned, reinforcing the need for a seamless experience.
User research in supermarket
Shopping behaviour observation
User testing session
Scan&Go research findings

Design approach

User journey mapping and user flows revealed that the Scan&Go lists experience involved a lot of repetitive scanning and lists tasks. Since Scan&Go shoppers have a higher Average Order Value (AOV) than the average in-store shopper, we expected Scan&Go shops to be relatively large in the number of items scanned. Therefore, it was paramount to optimise the number of repetitive steps involved by designing the following enhancements:

01

Nominate a list for the shop

Users can nominate a Woolworths shopping list to use for the duration of their Scan&Go shop.

02

Streamline scanning tasks

A scan button is added to the bottom of the shopping list to facilitate efficient and ergonomic scanning interactions.

03

Auto check off scanned items

As requested by customers in VOC feedback, scanned items are automatically check off in the Woolworths shopping list.

In Woolworths shopping lists, customers can specify the quantity of each item they intend to buy. To handle edge cases for different barcode types, we have designed the system so that an item is automatically checked off the list upon its first scan.

Final design

A solution that integrates Woolworths shopping lists within Scan&Go for a more intuitive and seamless shopping experience. It transforms Scan&Go from a siloed feature into a more complete shopping experience. This aligned with WooliesX's ecosystem strategy.

Scan&Go Lists — final design screens

Impact

This new seamless and integrated experience addressed the pain points that were the top detractors for Scan&Go. The results show improvements in user engagement and shopping efficiency.

+10pts

Increase in Scan&Go list Voice of Customer score

+20pts

Increase in overall Scan&Go Voice of Customer score

Key learnings

Use familiar products for in-store testing

During in-store testing of prototyped shopping lists, participants found it hard to locate unfamiliar products on the shelves. Using familiar products can reduce this friction and produce purer behavioural insights.

Design with feasibility in mind

The unexpected complex legacy code forced us to pair back ambitious designs to maintain project feasibility. This highlighted the importance of partnering closely with engineering throughout the entire design process.

Design for hand ergonomics

We can't always assume Scan&Go shoppers will use their phone with their dominant hand. Swipe gestures proved challenging during testing and the scan button needed to be full width of the screen for easy reach.