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O'Reilly ETech Conference: Laszlo RIA
O'Reilly ETech Conference: Laszlo RIA
O'Reilly ETech Conference: Laszlo RIA
O'Reilly ETech Conference: Laszlo RIA
O'Reilly ETech Conference: Laszlo RIA
O'Reilly ETech Conference: Laszlo RIA
O'Reilly ETech Conference: Laszlo RIA
O'Reilly ETech Conference: Laszlo RIA
O'Reilly ETech Conference: Laszlo RIA
O'Reilly ETech Conference: Laszlo RIA
O'Reilly ETech Conference: Laszlo RIA
O'Reilly ETech Conference: Laszlo RIA
O'Reilly ETech Conference: Laszlo RIA
O'Reilly ETech Conference: Laszlo RIA
O'Reilly ETech Conference: Laszlo RIA
O'Reilly ETech Conference: Laszlo RIA
O'Reilly ETech Conference: Laszlo RIA
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O'Reilly ETech Conference: Laszlo RIA

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Laszlo presentation at the 2003 O'Reilly Emerging Technologies conference. http://conferences.oreillynet.com/cs/et2003/view/e_sess/4341

Laszlo presentation at the 2003 O'Reilly Emerging Technologies conference. http://conferences.oreillynet.com/cs/et2003/view/e_sess/4341

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  • 1. O’Reilly Emerging Technology Conference Oliver Steele Chief Software Architect Laszlo Systems, Inc. April 23, 2003
  • 2. Announcement <ul><li>BOF: Are There Riches in Rich Internet Applications? </li></ul><ul><ul><li>“This BOF will provide a forum to discuss the economics of software and services focused on the user experience: how the industry obsession with servers will interact with the emerging emphasis on application front ends.” </li></ul></ul><ul><li>Winchester (this room) 6-7pm </li></ul><ul><li>Pizza </li></ul>
  • 3. LZX Goal: RIA Development <ul><li>LZX = XML + JavaScript </li></ul><ul><ul><li>DHTML with different tags </li></ul></ul><ul><ul><li>Tags to declare views, layouts, data, animation </li></ul></ul><ul><ul><li>Leverages existing skills and capabilities </li></ul></ul><ul><ul><ul><li>Developer sees DHTML </li></ul></ul></ul><ul><ul><ul><li>Deployer sees J2EE servlet </li></ul></ul></ul><ul><ul><ul><li>Browser sees SWF file </li></ul></ul></ul><ul><ul><ul><li>User sees a RIA </li></ul></ul></ul><ul><li>HTML is designed for static page publication </li></ul><ul><ul><li>page = content + structure + format </li></ul></ul><ul><ul><li>HTML = text + markup + style </li></ul></ul><ul><li>LZX is designed for rich internet applications </li></ul><ul><ul><li>RIA = data + logic + presentation </li></ul></ul><ul><ul><li>LZX = XML + JavaScript + components </li></ul></ul>
  • 4. Thin Internet Application
  • 5. Dynamic Internet Application
  • 6. Rich Internet Application
  • 7. Ingredients of a RIA
  • 8. Ingredients of a RIA Platform
  • 9. Features <ul><li>Model </li></ul><ul><ul><li>Data (XML) </li></ul></ul><ul><ul><li>Data Requests (HTTP) </li></ul></ul><ul><ul><li>Data Binding (XPath; DOM) </li></ul></ul><ul><li>View </li></ul><ul><ul><li>View Components (XML tags) </li></ul></ul><ul><ul><li>View Hierarchies (XML structure) </li></ul></ul><ul><ul><li>Animation (SMIL-like) </li></ul></ul><ul><ul><li>Constraints (JavaScript expressions) </li></ul></ul><ul><li>Control </li></ul><ul><ul><li>Scripting (JavaScript) </li></ul></ul><ul><ul><li>Events (CSS Event names) </li></ul></ul><ul><li>Modularity and Extensibility </li></ul><ul><ul><li>Classes (XML tags) </li></ul></ul><ul><ul><li>Includes (XInclude) </li></ul></ul><ul><ul><li>Component Libraries (tags + includes) </li></ul></ul>
  • 10. Pizza
  • 11. LZX Feature Walkthrough
  • 12. Desktop Application Model (MVC)
  • 13. Supporting RIA Development <ul><li>Best Development Practices </li></ul><ul><ul><li>Modularity </li></ul></ul><ul><ul><li>Extensibility </li></ul></ul><ul><ul><li>Separation of concerns (MVC) </li></ul></ul><ul><li>Team Development Practices </li></ul><ul><ul><li>Text-based </li></ul></ul><ul><ul><li>Collaboration </li></ul></ul><ul><ul><li>Media import </li></ul></ul><ul><li>Productivity </li></ul><ul><ul><li>Declarative </li></ul></ul><ul><ul><li>Standards-based </li></ul></ul><ul><ul><li>Low boilerplate </li></ul></ul>
  • 14. Architecture of a RIA <ul><li>Model </li></ul><ul><ul><li>Data </li></ul></ul><ul><li>View </li></ul><ul><ul><li>Media </li></ul></ul><ul><ul><li>Animation </li></ul></ul><ul><ul><li>Components </li></ul></ul><ul><li>Control </li></ul><ul><ul><li>User interaction </li></ul></ul><ul><ul><li>Business logic </li></ul></ul><ul><ul><li>Server transactions </li></ul></ul>
  • 15. LZX Ingredients <ul><li>XML </li></ul><ul><ul><li>View hierarchy </li></ul></ul><ul><ul><li>Data </li></ul></ul><ul><li>JavaScript </li></ul><ul><ul><li>Program logic and behavior </li></ul></ul><ul><ul><li>“ Back door” </li></ul></ul><ul><li>Other Technologies </li></ul><ul><ul><li>XPath for binding views to data </li></ul></ul><ul><ul><li>HTTP for data and media queries </li></ul></ul>
  • 16. Looking Back: HTML <ul><li>Simple applications are simple </li></ul><ul><li>Complex applications are feasible </li></ul><ul><li>Supports collaboration between developers and designers </li></ul><ul><li>The domain is the </li></ul><ul><li>Presentation of static documents. </li></ul>
  • 17. Looking Forward: RIA Development <ul><li>Simple applications should be simple </li></ul><ul><li>Complex applications should be feasible </li></ul><ul><li>Support collaboration between developers and designers </li></ul><ul><li>The domain is the presentation of rich interactive transactional web-deployed applications. </li></ul>

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