It’s estimated that 15% of the world’s population lives with some sort of disability. This means that each design, product or technical decision we make with accessibility in mind has the opportunity to lower the barrier of entry, and positively impact millions of people. And the beneﬁts of accessibility don’t stop there.
Creating accessible products has a compounding effect. For example, if you create an app which is going to be usable by visually impaired customers, the app also becomes easier to use for people with various situational limitations; such as somebody on the move, somebody using a phone with a poor display and people using their phones on a sunny day with screen glare.
Ensuring inclusivity when creating the Tesco groceries app
Tesco is the third largest retailer in the world, with an annual revenue last year of £57 Billion. Tesco tasked Kin + Carta Create UK with creating a new native groceries app for iOS and Android, to replace their existing cross platform app.
With Tesco serving millions of people through their app every month, we knew it was key to build an app which was accessible to as many people as possible. We decided to focus on two main areas; Voice Over/TalkBack and Dynamic Type.
Get buy-in across the team
We’ve learned from experience that building in accessibility from the start saves a bunch of time in the long run, so this has become standard procedure when building products for our clients. Alex Newnham, one of Kin + Carta Create’s senior test engineers said “Getting everyone’s buy-in at the start of the project on these two accessibility areas allowed the whole team to get aligned. We found that after an initial learning period, and the right cross-functional conversations, our overall speed of delivery wasn’t impacted.”
Building on strong foundations
By working closely with our engineers, we were able to design ﬂexible layouts which enabled us to provide support for a variety of dynamic text sizes. Supporting voice over also ensures the app’s content is structured logically, which beneﬁts all customers. Sam Dods, Kin + Carta Creates tech lead on the project said “40% of Tesco’s iOS customers use non-default font sizes on their device”, demonstrating the scale of the accessibility opportunity we’re dealing with.
Design, engineering and testing worked closely together to ensure that our design system was built to be accessible from the ground up. Accessibility was a regular topic of conversation in our design reviews and critiques. Constant communication, regular feedback and using a shared language about accessibility were all key in creating an accessible grocery app for Tesco. We were extremely fortunate to have had a dependable team of Tesco designers & product owners to work with to push this forward.