My key note speech at Droidcon 2012 promoting DT's leadership in the Smartphone Challenge initiative. Smartphones have catapulted the distribution of mobile apps to new highs with increased usage of mobile networks. The Smartphone challenge project goal is to optimise the interaction between devices & networks DT understand the threat from network intensive, badly designed applications and developed developer guidelines. DT alone cannot influence the market and we decided to leverage the support of GSMA, industry affiliates and developers themselves.

1. Life is for sharing.
Smarter apps for Smarter phones
- a guide to improving apps development for mobiles
Mobile Terminal Solutions
Deutsche Telekom UK Ltd
jeff.gardner@telekom.com
www.telekom.de
Jeffrey Gardner
Photo
(s. Tipp
rechts
Based on works by GSMA, Deutsche Telekom
Business Units : T-Labs, Technology Innovation &
Governance, Service Management & Product
Development.

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This presentation covers the following…
 How Mobile Operators view smart phones & apps
 The objectives of the apps developer guidelines
 Working examples of the apps guidelines
 Where you can find and contribute to the guidelines
 GSMA sponsored – smarter apps challenge

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Chronicle of the Smartphone and consumer usage
2000 2002 2003 2004 2007 2009 2010 2011
GPRS/
WAP 1.0
MMS iPhone Windows
Phone 7
WAP 2.0 UMTS Android LTE
0
1
2
3
4
5
6
2006 2008 2010 2012
User Data consumption
High
Medium
Low
User Data consumption
High
Medium
Low

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How Smartphone apps impact mobile networks
Smartphone users Network
Operator
apps Service providers
Apps ‘chattiness’ overloads Operators signalling network

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How Smartphone apps impact mobile users
source: T-Mobile US analysis for G1, defined user activity (power user) and two different Instant Messaging applications as on top activity in comparison
Apps ‘chattiness’ consumes battery life
Traffic Pattern
33%
73%
100%
G1 with heartbeat: every 28 minutes
IM App A reload: every 4 minutes
IM App B reload: every 1 minutes
Battery LifetimeApps activity (chat)

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Smartphone Challenge - eco system approach
Apps
Networks Terminals
AppsOS
TerminalsNetworks
OS
Collaborate with OS suppliers to optimize efficiency
Drive mitigating features through 3GPP
Ensure integration into terminal specification
Optimize network configuration
Drive resource friendly features within network releases
Execute granular load monitoring Analyze Apps and address critical behavior
Drive harmonized developer guidelines through GSMA

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Mobile Network ‘Know-How’ for 3rd party developers
Objective:
 The “developer guidelines” document aims to create
awareness amongst new/novice developers while
encouraging better development habits.
 Provides a set of key principles (some independent of
the underlying platform) covering:-
Asynchrony
Connection Loss and Error Handling
Caching
Efficient Traffic Usage
Compression
Background/Foreground Modes
Security
Scope :
 Targeted at Android, Windows Mobile & iOS

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Developer Guidelines – what areas are addressed?
Connection Loss +
Error Handling
Asynchrony Latency
Non-Modal User
Interface
Connectivity User
Experience
Compression
Fast Dormancy HTTP Cache
Data Formats
Network Efficiency
Security
Media
Transcoding Local Cache
Application Scaling
Optimizing Network
Requests
User experience
Mobile connection
Device battery

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Asynchrony
Connection Loss +
Error Handling
Latency
Non-Modal User
Interface
Connectivity User
Experience
Asynchrony
Connection Loss +
Error Handling
Latency
Non-Modal User
Interface
Connectivity User
Experience
Connectivity User Experience
Topic : Asynchrony
9
 Mobile networks are relatively slow
Synchronous requests
Asynchronous requests
(ideal)
Asynchronous requests
(real mobile network) Image 1
Image 2
Image 3 (no response)

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 Network activities should be visible to the end user
Connectivity User Experience
Topic : Non Modal User Interface
 User interface should not be blocking
Non Modal User
Interface
Connection Loss +
Error Handling
Aynchrony Latency
Connectivity User
Experience
Non Modal User
Interface
Connection Loss +
Error Handling
Aynchrony Latency
Connectivity User
Experience

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Fast Dormancy
HTTP Cache
Compression
Data Formats
Security
Network Efficiency
Fast Dormancy
HTTP Cache
Compression
Data Formats
Security
Network Efficiency
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 Awareness of how networks save battery & signalling
Power
Datatransfer
Before
Network efficiency
Topic : Fast dormancy
After
Power
Time
Datatransfer
Data transfer =90kb
Power used = x
Time = y
Data transfer =90kb
Power used = x/3
Time = y/3
}
}
30Kb
30Kb
90Kb
30Kb

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And now for the video !
See it @ www.gsma.com/smarterapp
Shortcut to 120227_SmarterApp_FINAL_V2.wmv.lnk

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To download, feedback and engage go to…
 Download the full document @ www.gsma.com/smarterapp
 You can provide feedback on the document by emailing devguide@gsm.org
 You can join the dedicated W3C community discussion at
www.w3.org/community/networkfriendly/join
 You can enter a competition, prove your app as being
network efficient, and win prize money and a trip to
Asia World Congress
www.mobileappchallenge.com/smarterapp
 Tweet @appchallenge
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It‘s
free
It‘s
free

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Acknowledgements
The guideline has been compiled by operators, vendors and developers.
It is a living document and planned to be updated on regular basis.
All trademarks are acknowledged.
1 iOS is a trademark or registered trademark of Cisco in the U.S. and other countries and is used
under licence by
Apple Inc. www.apple.com
2 Mac® and Mac OS® are trademarks of Apple Inc., registered in the U.S. and other countries.
3 Android™ is a trademark of Google Inc. in the U.S. and other countries. www.android.com
4 Windows® is a registered trademark of Microsoft Corporation in the United States and other
countries. www.microsoft.com
GSMA is a registered trademark of GSMA Ltd. in the United Kingdom and other countries.
Copyright Notice
Copyright © 2012 GSM Association.
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