The Silent

1
Mobile Java

• The Silent
• Revolution

2
The standardization process
proprietary (NTTDoCoMo)
industry standard(Java Community Proces)
MIDlet
iApplication
Mobile Information Device Pofile(MIDP)
i-mode iAppli Profile
industry standard(Java Community Proces)
Connected Limited Device Configuration (CLDC)
industry standard(Java Community Proces)
K Virtual Machine (KVM)
industry standard (Sun)
OS (Win32, Unix, etc.)
OS (Palm OS, EPOC, Windows CE,etc.)
3
Industry support

• NTTDoCoMo launched Java enabled handsets for
  i-mode service in Q2/2001
• Motorola launched first Java enabled handset in
  Q2/2001
• Siemens launched MT50 in Q2 2002
• Nokia to ship 50 Mio Java enabled handsets by
  2003 (press-release)
• ARM and Sun jointly develop improved Java
  processor. ARM is the leading chip manufacturer
  for mobile devices.

4
The big advantages

• platform independent
• reduces complexity due to fragmented RTOS market
  (Symbian, Epoc, Linux, Windows CE, etc.)
• on-demand installation of applications
• allows for personalization of devices opens new
  market for ISVs, Content Providers and MNOs
• network technology independent
• reduces complexity due to fragmented network
  technology market (GSM, CDMA, WCDMA, Bluetooth,
  etc.)

5
The big advantages (2)

• Internet style network interface
• based on successful and proven Internet
  technologies (HTTP)
• Better User Experience
• Graphical User Interface, Local Persistent Store

6
How the application is loading
Wireless Network
7
Features - Graphical User Interface

• optimized for small LCD screens
• at least 96x54 screen-size

8
Features - Media Profile

• can load and display plain text
• can load and display images in Portable Network
  Graphics (PNG) format
• no support for movies
• no support for animations
• no (native) support for markup languages
• no support for sound

9
Features - User Input

• either a keyboard, or a touch-screen
• according to software specifications, the
  following user input events can be handled
• key press on any of the standard phone keys (0-9,
  ,)
• key press on 5 navigation keys (left, right, up,
  down, fire)
• key press on mappable gaming keys
• click on a (x,y) coordinate on the screen

10
Features - Soft Keys

• MIDlets can activate soft keys on the target
  device
• visualization of the soft keys depends on the
  device

soft keys mapped to keys
soft keys as graphical buttons
soft keys as menu
11
Features - Networking

• generalized Network interface independent of
  underlying networking infrastructure
• based on familar Internet technologies
• a Java enabled device must provide a HTTP like
  interface to remote services

12
Networking - SMS, USSD ?

• no interface for sending or receiving SMS
• no interface for accepting or launching USSD
  dialogs
• but
• provides a generalized datagram interface
• probably, manufacturers will provide drivers to
  connect this interface to SMS and/or USSD

13
Features - Persistent Store

• applications can persistently store information
  on the device
• examples
• caching latest news
• caching most recent queries
• providing an address book
• major difference to pure networked applications
  using WAP (but WAP 2.0 specifies a Local
  Persistent Store for WAP based applications)

14
Features - Telephony integration

• no telephony integration
• not possible to react telephony events like call
  setup or call termination
• not possible to start a call
• not possible to access information in the phone
  book, the SMS store, etc.

15
Features - Security

• proven Java security model which protects from
  malicious code
• no mechanism for code authentication (code
  signing, etc.)
• no built-in support for secure network
  communication (HTTPS, SSL, etc.)
• but
• secure communication layer can be added by ISVs
  at least on the datagram level (encrypting and
  authenticating datagrams)

16
Features - Disconnected Operation

• java application run on the device even if the
  device is not connected to a network
• allows for new type of applications which make
  use of
• locally stored profiles
• locally cached information
• locally stored personalized access paths

17
Market players
Manufacturers
Operators
build
ship/preconfigure
provide software
ISVs
Content Providers
providecontent
provideservice
buy/use
End user
ASPs
18
Java enabled devices (Examples)
SiemensSL45i
Palmm505
SiemensMT50
Motorola Accompli 008