1.
Mobile First
Frédéric Harper
Senior Technical Evangelist @ Mozilla
@fharper | outofcomfortzone.net
2013-09-17

2.
Questions
http://wpc13.cnf.io/sessions/6
1

3.
Theproblem

4.
Before

5.
Today’s web

6.
So, too often…
 the mobile devices are taken as a separate element
 the mobile devices are' simply not taken into consideration
 the web experience isn’t good on mobile devices

7.
the anti experience

8.
Thesolution

9.
Onesolution

10.
Mobile first
Luke Wroblewski blogued about it on November 3rd 2009

11.
Fundamentally, there’s just one World Wide Web,
but it can be experienced in different ways on
different devices.
- Luke Woblewski, Mobile First, A Book Apart

12.
The experience

13.
why

14.
the growth

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the growth of mobility
• ~--2014 = mobile > desktop
• In US, 25% = mobile only!
• Example (soon):
50% mobile of YouTube’s videos
Sources:
http://www.trinitydigitalmarketing.com/the-rise-of-mobile-infographic
http://crave.cnet.co.uk/software/google-is-now-a-mobile-first-company-execs-say-50009727/
http://www.smartinsights.com/mobile-marketing/mobile-marketing-analytics/mobile-marketing-statistics/

16.
In perspective
Source: http://lukew.com/

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Don’t we all use native app?
347% of augmentation on the
mobile browser usage
(4.7 million) in January 2010
Source: http://www.lukew.com/

18.
Don’t we all use native app?
112% of augmentation on
mobile browser usage
(251 million) in January 2010
Source: http://www.lukew.com/

19.
the constraints

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the context

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the mobility isn’t just about mobile
Too often taken as inconvenient, take advantage of those!

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the smartphones features

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the smartphones features
• Detection of location (geolocation) - GPS
• Smartphone orientation – Accelerometer
• Touch screens
• NFC (Near Field Communications)
• …

24.
the opportunities

25.
HTML5 frameworks

26.
HTML5 apps

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the advantages

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Mobile First
• Prepare your site to new mobile opportunities
• Force us to prioritize, and concentrate on the content/container
• Give us the opportunity to create better [mobile] Web experience
• Give us the opportunity to create innovative experiences

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the reality
Source: http://xkcd.com/773/

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the disadvantages

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the disadvantages
• Changing your way of building your website or app
• You really need to know the needs of your customers

32.
Howto

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Redefining the experience

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UI
 NUI – Natural User Interface
 Touch
 Region easier or hard to reach
 Limit to the essential

35.
Touch
 Recommended = 9mm/34px
 Minimum = 7mm/26px
 Minimum spacing= 2mm/8px
Source: Windows Phone UI Design and Interaction Guide v2.0

36.
…every desktop UI should be designed for touch
now. When any desktop machine could have a
touch interface, we have to proceed as if they all
do.
- Josh Clark, http://globalmoxie.com/blog/desktop-touch-design.shtml

37.
Every UI should be designed for touch!
- Frédéric Harper, Web & PHP Conference, 2013-09-17

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The engine behind
1. Eliminate redirections, and limit the number of HTTP requests
2. Use Offline Storage/App Cache
3. Use CSS3 or canvas element instead of images when
possible
4. …

39.
Optimize the speed

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Smartphones features
1. Use geolocation
1. Location, and direction
2. Use smartphone camera or
microphone
3. Use the RFID/NFC chip

41.
resources

42.
http
 Luke W post: http://www.lukew.com/ff/entry.asp?933
 Mobile First book: http://www.abookapart.com/products/mobile-first
 Luke W presentation: http://vimeo.com/38187066
 A list Apart: http://www.alistapart.com/
 Tapworthy: http://shop.oreilly.com/product/0636920001133.do
 Google PageSpeegd Insights:
http://developers.google.com/speed/pagespeed/insights/

43.
At the end, Mobile First is
• thinking of the growth of mobile devices
• minimizing the constraint
• maximizing the capacities, and context of usage
• Usually a better experience to the user
• Not necessary an easy approach (at the beginning)

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It’s also…
• Mobile First <3 Responsive Web Design
• Responsive Web Design != Mobile First
• Content First is the key
• It’s only the beginning…

45.
Shameless plug
Responsive Web Design
tomorrow at 4:25 PM - room A

46.
Keep in mind
Mobile Experience = capacities – constraints + prioritization
contexts

47.
Evaluation & questions
http://wpc13.cnf.io/sessions/6
1

48.
Frédéric Harper
fharper@mozilla.com
@fharper
http://hacks.mozilla.com
http://outofcomfortzone.net