Interview of Michael Juntao Yuan

Mobile Guru column is a dedicated section of, which features seasoned professionals , pioneers, and contributors in the mobile development community. We are happy to invite Michael Yuan to our featured Mobile Guru column this month. Could you tell us a bit about yourself?

  • Author of "Enterprise J2ME" from Prentice Hall
  • Architect and lead developer of the Nokia Series 40/60 Blueprint applications
  • JavaWorld Wireless Java columnist
  • Speaker for JavaOne and other conferences
  • PhD candidate at the University of Texas at Austin Which area of mobile industry you're involved with?

  • Mobile commerce research (business models and technology trends)
  • End-to-end application development
  • Developer education Could you explain some of the interesting aspect of your effort?

MJY: I cannot really talk about the Nokia Blueprint right now. But I can talk about my book. The "Enterprise J2ME" book is the first advanced mobile Java book that specifically targets enterprise developers. It gets hand-on with many examples and at the same time, stays focused on design choices. Enterprise developers will learn how to extend their existing skills and add mobility features to their enterprise backend applications.

Mobile consumer application (game) developers can also learn enterprise design patterns and best practices from the book and get ready for this important new market. What do you see is the main challenge you see facing mobile technology development at this time?

MJY: Standardization. Developers need standardized APIs but device manufacturers need to differentiate themselves in the market place. So, this is a constant battle. We will see whether the JCP can keep J2ME up to date with all those new hardware innovations. Do you see mobility is more important to enterprise space or to consumer space?

MJY: Both. Right now, consumer applications are hot. It is basically a replay of the early history of personal computer and the commercial internet. Enterprise applications will catch up when the infrastructure is there. That might take a couple of years before consider their mobiles as tools rather toys. But the enterprise mobile revolution will come -- especially if you consider that more than 66% of the US work force will be mobile by 2007. What, in your view, are the attributes contribute to a successful mobile device?

  • Large color screen
  • Long battery life
  • Support for external hardware add-ons (GPS, scanner etc.)
  • Access to multiple networks and email systems
  • Convenient input methods (pen or build-in keyboard)
  • Support for all the latest programming specifications (J2ME, Symbian, .NET CF etc.) What, in your view, are the attributes contribute to a successful mobile application?

MJY: I think the application must be designed with mobility in mind. It must consider the limited screen size, CPU power and network availability on mobile devices. So, the choices of the right technology (J2ME/Symbian/MMS/WAP) and the overall end-to-end design are crucial to the success. Where should people go to learn more about your effort?

MJY: Get my book. :) Or, you can visit me at JavaRanch's J2ME forum. Forum Nokia and JavaWorld are also places to read my articles. We would like to thanks Michael for his time and insights. We hope to talk to Michael again in near future.


Michael's Enterprise J2ME Book Website

JavaRanch's J2ME Forum

Forum Nokia

JavaWorld news
Feb 14, 2004 - New downloads from our Bluetooth section. BlueChat example application with full source code. Learn more! Bluetooth more! [more]
Feb 14, 2004 - Found out what SonyEricsson P900 has to offer for J2ME developers. Review our P900 developer review. [more]
Feb 14, 2004 - Check out Ben's latest Java Bluetooth development article at JDJ Feb issue. Get it off the shelf while it last. [more]
Dec 15, 2003 - Our Bluetooth section open! Check out our Bluetooth Browser, Code gallery, and tons of links. [more]
Nov 08, 2003 - Join us to chat with Michael Yuan. Learn more about Enterprise J2ME. [more]
Nov 08, 2003 - 35 more links added to our popular J2ME Master Links [more]
Nov 08, 2003 - MIDP 2.0 phone list is updated to include the latest and greatest phones. And with links, too! Check it out. [more]
Sept 21, 2003 - Add MIDP 2.0 phone list section. [more]
Aug 28, 2003 - Spy your mobile device even more with our Mobile Speed tool. [more]
Aug 22, 2003 - Spy your mobile device with our new Mobile Echo tool. [more]
Aug 22, 2003 - A new forum section is added to our links database. Questions? Dunno where to start? Start from here!
Aug 22, 2003 - Another 20 links added to our database. You have links to suggest? email us!

Aug 01, 2003 - the new goes live! Fully updated with lots of J2ME links, UML diagrams, and special features.

Aug 01, 2003 - check out our latest featured phone - Nokia 3650 [more]


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