wireless java possibilities, services, limitations, and competitors.wireless java
TRANSCRIPT
Wireless JavaPossibilities, Services, Limitations, and Competitors
.Wireless Java
About this presentation
Show you what you can do with Java today, and tomorrow• Overview of Wireless Java
• Why Java?
• Possibilities, limitations, and future expectations
What about wireless services?
Market penetration of mobile Internet expected to reach 25% within 4 years (Forrester)
Mobile Commerce in Europe alone is worth US $ 23 billion within 2003 (Durlacher) http://www.analysys.com/Articles/StandardArticle.asp?iLeftArticle=1003&i=20
Years to Reach 25% Market Penetration
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Telephone PC Cellular Internet Mobileinternet
Category
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M-business revenues Europe 2000-2005
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Forrester, 2001 Durlacher, 1999
What is Wireless Java?
J2EE Server
Wireless GatewayPhone
Internet
HTTP
Java on the terminal – J2ME/MIDPServer-side Java creating content for a terminal
Java 2 Micro Edition
JavaCardJ2ME
CLDC
J2EE
Application Server
Application Server
Enterprise Services
Enterprise Services
Standard LibraryStandard Library
J2SE
JVM (HotSpot)JVM (HotSpot)
JavaCard APIJavaCard API
JCREJCRE
CDC
CLDC Core APICLDC Core APICLDC Core APICLDC Core API
CVMCVM KVMKVM
PD
A P
rofile
PD
A P
rofile
Mobile
In
tern
et
Device
Mobile
In
tern
et
Device
Oth
er
Pro
file
Oth
er
Pro
file
Perso
n
Pro
file
Perso
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Pro
file
Foundatio
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rofile
Foundatio
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rofile
Java LanguageJava Language
Example of MIDP applications
MasterMind Java Fly By Report Sheet Snake
Screenshots from Sun’s Wireless Toolkit
What can MIDP do?
Standard programming tasks• Calculations, threads, string handling, etc.
Display UI and handle input• Low-level (control pixel drawing, input events)
• High-level (forms, fields, etc)
Store data Simple network usage (http) Limited functionality: Easy to learn
Screenshot of Nokia’s Wireless Java SDK
Usage scenario: Enterprise Applications
Mobilize your workforce!
Usage scenario: Games
Why Java on the Terminal?
Unique possibilities• Offline usage
• Client-intensive computations
• Complex graphics and animations
Find and develop added value propositions
Why Java? Availability and platform independence
The promise of platform independence is suddenly extremely valuable
The promise of network deployment is suddenly even more valuable
JCP: Process controlled by handset manufacturers
Availability: 2 pieces of good news, one piece of bad
Image copyright Sarah Brodwall
Good news: 25 million Java Phones!
Bad news: 18-20 million of these in Asia
Good news: More are coming
Sun is estimating 80-100 million Java phones by the end of 2002
Vendors are announcing more Java phones in 2nd half of 2002
From forum.nokia.com:• “Nokia alone intends to deliver tens of millions of
terminals with Java technology by the end of the year (2002).”
MIDP 1.0 Limitations
Hard to make low-level GUI (games) – limited support for colors, transparent images
High-level GUI only at about same level as WAP 1.1 No standard for communicating with phone
functionality Cannot handle incoming communication (server
sockets or messages) Only recommendations for provisioning/deployment
MIDP 2.0
JSR 118, led by Motorola Release: Q3 2002? Phones: Q2 2003? Adds
• Game UI classes (spites, layers), UI
• Media classes (can play files or streams)
• Security: Trusted MIDlets and HTTPS
• Push message reception
• OTA deployment is required
http://www.jcp.org/jsr/detail/118.jsp
Other interesting specs
JSR-75: PDA Profile (public review) JSR-82: Bluetooth (final release March) JSR-120: Wireless Messaging (final release Aug) JSR-135: Mobile Media API (final release Jun) JSR-139: CLDC 1.1 (public review) JSR-172: J2ME Web Services (just started)
Competition
Browsing (WAP): Only applicable for some uses Pocket PC/.NET Compact Framework/Wince: Targets high-end
devices, enterprise apps. But more powerful than MIDP. Symbian/Palm OS/BREW/Motorola MIX: Device-specific; may
be harder to deploy. But more powerful than MIDP.
Source: ESRI
MIDP: Conclusion
MIDP 1.0 will be available on many devices
MIDP offers device independence and code download
MIDP 1.0 has many limitations, MIDP 2.0 will address most
MIDP is easy to master
Server Side Wireless Applications
Browsing (WAP) Messaging (SMS, MMS)
Voice (VoiceXML)
Server side applications
J2EE Server
Wireless Gateway
Phone
Internet
Wap
WML/HTTP
SMIL/HTTP
VoiceXML/HTTP
Phone
Messages
Modem Bank
Voice Browser
VoiceXML/HTTP
Audio
Audio
Mobile Browser Overview
Java 2 Enterprise Edition
WAP Gateway
3. WML4. Compiled WML
1. OTA Request 2. HTTP Request
Simple for the content provider!
WAP’s Failure
Too little, too late Too slow Limited service potential (billing) Expensive to use! Heterogeneous devices
WAP’s Comeback
Faster networks (GPRS) Cheaper networks (GPRS) Faster phones/browsers Better browsers Third party “multi-channel” software
WAP is having a renaissance
Typical Browser Services:
Information services• Online address-book
• News
Product/company presentation m-Commerce m-Banking Application download
Messaging
SMS, MMS, and WAP Push SMS-interfaces not standardized SMS still successful MMS is standardized
• Based on SMTP or HTTP for transport,
• SMIL for presentation
Modern terminals support WAP push
MMS architecture
Java 2 Enterprise Edition
MMS Gateway
1. SMIL over HTTP or SMTP
2. Notification over SMS
3. Request and response over WAP
Simple for the content provider!
Messaging Services
Configuration messages, pictures, ring-tones• (Browsing services are better for this, though)
Alerts!• Weather, traffic, news, stocks, email• Surveillance alarms: Control systems, cameras, panic-buttons• Service Announcements
Chatting• Can be enhanced with images
Messaging – Surveillance Alarm
Messaging – Service Announcement
Bluetooth.exe
Voice: What is It?
Voice was first phone killer app! Most systems today: IVRs
• Recorded messages
• DTMF keys
On the horizon: VoiceXML• Adds: Text-to-speech, voice command
• Provides an easy interface for service provider
• Metaphor: Filling out forms
Voice Architecture
J2EE Server
HTTP/VoiceXML
VoiceVoice Browser
Simple for the content provider!
Voice Services
Can be used with regular phones, pay-phones, and mobile phones
Challenging to design good UI• Imagine a two-level menu with 5*10 options
• Imagine call-center maze syndrome
May be very powerful and user friendly Killer app: Yellow pages, ticket ordering,
directions
VoiceXML FAQ
Yes, it is available now! Yes, it works! Yes, it is available in Norwegian!
Comparison
J2ME/MIDP• Offline use, graphics, games
Browsing (WAP)• Information search and viewing
Messaging• User-to-user, alerts, news, service announcement
Voice• Broad user base, appropriate end-user usage
Will Java Lead to a Breakthrough in Wireless Services?
Terminal: MIDP 1.0 (J2ME) Server side: HTTP services (J2EE)
The data services marked will increase Data services will become ubiquitous Find the added value propositions!
Java is positioned for the present and the future