Responsive Heroes at Scale

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Olawale Oladunni & Mini Kurhan source image www.ﬂickr.com/photos/lord-jim/5315334550

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Hello! Mini Kurhan Principal, User Experience Walmart.com @minikurhan Olawale Oladunni Principal, User Experience Walmart Grocery @doubleola

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Walmart starts moving to Responsive Web Design in 2014

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What’s a hero image?

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Hero images are usually large promo images

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photo + whole lotta text aspect ratio? so tiny!

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How did we get started? photo credit: www.ﬂickr.com/photos/ian_munroe/3598706185/

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Large Device Width Small Device Width Medium Device Width

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Large Device Width Small Device Width Medium Device Width @1× - Normal pixel density images @2× - Retina pixel density images 3:1 2.4:1 2:1 3:1 2.4:1 2:1

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Cross-functional team is onboard. photo credit:http://www.fourcornersalliancegroup.com/wp-content/uploads/2014/11/happy-team.jpg

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A few weeks later…

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photo credit: vignette3.wikia.nocookie.net/p__/images/5/5d/Home_alone_macaulay_culkin_kevin_mccallister_boy_fear_shout_fright_346_1600x1200.jpg

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Normal Pixel density @1× High Pixel density @2× Normal Pixel density @1×

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3:1 2.4:1 2:1

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Denver, CO San Jose , CA

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3 image breakpoints

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6 Images to support retina displays

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24 total images in a carousel with 4 unique images

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And if you have to 20 different markets.

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480 total images are needed

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Creation Upload Design workﬂow

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Creation Asset Management Trafﬁcking Publishing Actual Workﬂow

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How can we minimize team effort and reduce number of high quality images needed, without sacriﬁcing site performance on any device?

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Use only retina images. Idea 1

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Large Device Width Small Device Width Medium Device Width @1× - Normal pixel density images @2× - Retina pixel density images

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WTfudge performance?

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@1× resolution images @2× resolution images Dimensions: 1080 × 460 pixels JPEG quality: 80% File size: 155 kb Dimensions: 2160 × 920 pixels JPEG quality: 80% File size: 367kb

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@1× resolution images @2× resolution images Dimensions: 1080 × 460 pixels JPEG quality: 80% File size: 155 kb Dimensions: 2160 × 920 pixels JPEG quality: 10% File size: 156 kb

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@1× resolution images @2× resolution images Dimensions: 1080 × 460 pixels Dimensions: 1080 × 460 pixels

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Perceived quality photo credit: www.ﬂickr.com/photos/mccun934/6220542849/

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Reduce the number of breakpoints. Idea 2

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Large Device Width Small Device Width Medium Device Width @2× - Retina pixel density images JPEG quality: 10% File size: 156kb JPEG quality: 80% File size: 219 kb JPEG quality: 10% File size: 155 kb

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Large + Medium Device Width Small Device Width @2× - Retina pixel density images

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Idea 3 Standardize aspect ratios.

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3:1 2.4:1 2:1

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Art Direction - One layout scaled down for smallest image breakpoint 3:1 3:1

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Art Direction - Different layout for smallest image breakpoint (optional) 3:1 3:1

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Before After 3:1 2.4:1 2:1 3:1 2.4:1 2:1 3:1 3:1 @2× - Retina pixel density @2× - Retina pixel density @1× - Normal pixel density

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480 images Before 20 markets 160 images After 20 markets

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This time for real! photo credit:http://www.fourcornersalliancegroup.com/wp-content/uploads/2014/11/happy-team.jpg

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photo credit: allthingsd.com/ﬁles/2013/03/WalmartHQ.jpg

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Adaptive Desktop Separate mWeb

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Adaptive Desktop Separate mWeb

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Adaptive Fully Responsive Desktop ? ? ?

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We’re going responsive in 4 months.

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Jump right in. photo credit: www.ﬂickr.com/photos/pmorgan/2829133525/

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What is currently being done?

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Home Page Department Page

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Heros Banners Home Page Department Page

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photo credit: cdn.evbuc.com/eventlogos/130112857/clueless659.jpg

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How can we manage the smallest amount of ﬁles, minimize the workload for all the people involved, while on a short timeline?

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My idea Just use one image.

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Banners!

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Crop Safe Crop Safe

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Crop Safe Crop Safe

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Seeing is believing.

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Home Page (Breakpoint A)

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Home Page (Breakpoint A)

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Home Page (Breakpoint A)

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Home Page (Breakpoint A)

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Home Page (Breakpoint A) Department Page (Breakpoint A)

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Home Page (Breakpoint A) Department Page (Breakpoint A) (Breakpoint D) (Breakpoint E)

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Seeing is believing.

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photo credit: vignette3.wikia.nocookie.net/p__/images/5/5d/Home_alone_macaulay_culkin_kevin_mccallister_boy_fear_shout_fright_346_1600x1200.jpg

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Heroes!

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1. Vector 2. Guide Image 3. Sample Graphic

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Safe Crop Crop

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Safe Crop Crop

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Safe Crop Crop

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5,500 images Before 2.25 breakpoints 10,000 images 1:1 Desktop & mWeb 3 breakpoints Desktop mWeb

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4,200 images Responsive 5 breakpoints Everywhere

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What we learned

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It’s not only about the technology

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The teams impacted by responsive design aren’t always obvious

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It’s a partnership between UX and Creative

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Validate ideas through prototyping

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Scale is actually not about size

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Thanks! Mini Kurhan Principal, User Experience Walmart.com @minikurhan Olawale Oladunni Principal, User Experience Walmart Grocery @doubleola