Accessibility_for_Design_System_2019.pdf

Transcript

1. A11y for Design System Paya Do
2. Introduction Countries i have lived: Vietnam, US, Singapore, Japan Before 10: sewing, drawing, crafting dumb devices, very good at mathematics Before 20: studying law, still drawing and crafting dumb devices 21 ~ now: made games, made e-commerce systems (Amazon, Diesel, Marc Jacobs, Michael Kors, Ray-Ban etc.). Now with Mercari. Still pushing pixels & liking dumb devices I like visual & interface design. I code sometimes.
4. E-commerce works
5. What Is Mercari? The Mercari app is a C2C marketplace where individuals can easily sell used items. Mercari offers a unique customer experience, with a transaction environment that uses the payments Mercari holds in escrow, and simple and affordable shipping options.
6. By the Numbers (JP/Full Year) 232 346.8 GMV¹ 490.2 B
 In: billion JPY FY 06/2017 FY 06/2018 21.2 33.4 Net Sales 46.2 B
 In: billion JPY FY 06/2017 FY 06/2018 8.45 10.75 MAU² 13.57 M
 In: Million people FY 06/2017 FY 06/2018 Source: Internal documents, from FY2018.6 Presentation Material
 1. GMV after cancellation
 2. Monthly Active Users in June. Number of registered users that used our app in the month
 490.2 FY 06/2019 46.2 FY 06/2019 13.57 FY 06/2019
7. Mercari’s Strengths Fun & Engaging App use time on par with that of social media Source: Nielsen Digital (January 2018) *Nielsen’s data is based only on mobile app usage and does not include PC browser use. Average monthly usage time for unique users in January 2018. Frill and Rakuma merged in February 2018.

8. Current business development Make Selling a Breeze
9. My current duty mercari R4D is a research and development organization of Mercari, Inc. established in December 2017. Our goal is to conduct speedy research and development, and to implement them within society
10. Mercari life
11. Mercari Japan Help guide UI Adding keyword search form with auto-complete Changing to drop-down menu Adding web / desktop version Customer support chatbot
12. Mercari Transaction Checker Tool Material-UI React Components App-like desktop dashboard Keyboard accessible, high color contrast
13. Design System By the people, for the people Not just UI components (this is old)
14. Design System Structure
15. Building Blocks
16. UI Elements Atomic Design is a popular methodology with 5 component stages. Follow the fundamentals, also customize to fit your team. Look for “Atomic Design” by Brad Frost
17. A simple example Letter “M” can look different and sound different on different browsers. Design system means working with small parts to create pattern. Ethan Marcotte - The World-Wide Work https://newadventuresconf.com/2019/coverage/ethan/
18. Design System By the people, for the people a11y (Accessibility)
19. Google I/O’19 Accessible product for everyone Developer can make choices that drive business & social impact
20. Why a11y? To make better choices for your users. More and more people of all abilities/economies are having access to the internet & smartphones. Helps us focus on what really matters -> we will be able to simplify things We are all temporarily abled
21. Accessibility: Live Caption Live, on-device captions for any video you watch on your Android device, coming later this year with Android Q Use cases: people with hearing difficulty, talking on a phone with noisy background, etc.
22. My grandpa & the tech
24. Solve one, benefit others Situational limitation A solution can scale to broader audiences https://download.microsoft.com/download/b/0/d/b0d4bf87-09ce-4417-8f28-d60703d672ed/inclusive_toolkit_manual_final.pdf
25. “In Vietnam, the survey found that over 7 per cent of the population aged 2 years and older, – around 6.2 million, have a disability but an additional 13 per cent - nearly 12 million, live in a household with a person with a disability.” “Asia is the largest growing market for smartphones.” “30% of users in India search primarily using voice.” https://www.unicef.org/vietnam/press-releases/launch-key-findings-viet-nams-first-large-scale-national-survey-people-disabilities
26. Accessibility Principles for Design System
27. Perceivable Color & Contrast Web Content Accessibility Guidelines (WCAG) 2.1 285 million people who are visually impaired around the world https://www.butterfly.com.au/blog/design/heres-why-you-need-a-wcag-friendly-digital-design-system A (minimal): Low AA (mid): standard AAA (highest)
28. Dark Theme Android Q Saving up to 60% of phone battery Enhance accessibility
29. Working with Dark Mode (L) Don’t: High contrast accent blue color Bold font on bold font on blackest black background #000 can hurt the eyes (especially Japanese font has more strokes). (iOS new dark mode mail app) ® Do: Dark grey background Resilient blue as accent color Only uses bold text when needed (Slack dark mode)
30. Perceivable Text size and audio controls Android iOS (photo: dev discussion in Mercari)
31. Operable Keyboard accessible, Navigation through things Mercari Transaction Checker Tool: navigation through keyboard, error tolerant, focus oder, used daily by non-dev employees.
32. Operable Touch target sizing Simple principle: Make your targets big so that they are easy for the users to tap. Apple’s Human Interface Guidelines: minimum 44px Google’s Material Design: minimum 48px Microsoft’s Windows Phone UI Design & Interaction Guide: recommended 34px
33. Understandable Predictable & consistent Button with both icon & straightforward content
34. Understandable Predictable & consistent Labelling: screen readers can render to explain the meaning of UI elements Keyword: screen reader as “assistive technology”
35. Robust “Everything works” Some are slower, some are faster to adopt new technologies. But everyone is allowed to choose their own method to access the internet content. Clean, standard code that helps assistive technologies react correctly.
36. A11y is not difficult. One bite at a time. Start with... Focus on user, not the technology
37. The repository of publicly available design systems and pattern libraries. Contrast Analysis & Accessibility guidelines ready-systems are some good references (with Material Design too) ‘https://adele.uxpin.com/’
38. Check the contrast ratio The most common accessibility failure. Golden number 4:5:1 or at least meet the AA standard Colorable tool https://colorable.jxnblk.com/
39. Clean code & robust content 68% of homepages are missing alternative text/image. Lighthouse tool for Chrome
40. The web components problem: - No focus styles - Lack of keyboard access - Poor contrast, font size - Inability to zoom - No screen reader (assistive technology support) - Autoplaying motion - Cryptic, unlabeled icons - No captions/alt/descriptions
41. Testing + Manual testing: Interact with your app using Android/iOS accessibility services. + Testing with analysis tools: Use tools to discover opportunities to improve your app's accessibility. + Automated testing: Turn on accessibility testing in testing library. + User testing: Get feedback from real people who interact with your app.
42. Testing hazard… What are these labels my dev friends???
43. Run screen reader on your device Accessibility Scanner identifies aspects that can be improved for your app’s users
44. Any product, that doesn’t fulfill all the standards regarding accessibility has the power to do harm and exclude people Design has power to improve inequality for internet users.
45. Google’s Project Euphonia To collect more voice data from people with impaired speech
46. Go beyond & do not stay average Devices are getting more affordable. Communication technology and designing for the extreme can develop better solutions, and make a good product, not just to do good. Let’s include as many people as possible.
47. Question?