Open Document Format (ODF) due to a wide spectrum of software environments including office document editor suites is increasingly popular. To extend the list of platforms supporting ODF, as editors of concurrent formats (MS Office) are already available on mobile platforms, development of an ODF editor runnning on mobile devices is in need. The goal of our project is to develop an ODF based data model and a set of supporting tools to create a user-friendly mobile editor suite. Considering the hardware and software resources available on a mobile device, a schema controlled editor is under design which is able to provide most of ODF features while editing standard conforming documents on the mobile site. As mobile devices range from cell phones through smart phones to PDAs, and these platforms have different resource limits, our editor has to be able to adapt to the current device. To reach our goal, we investigated the resource need of test editor software, of primitive operations which transforms documents in a standard conforming way, and selected those which may be performed easily on a mobile device. We plan to extend our software suite with server (desktop) site components in order to distribute office documents over desktop and mobile site. The distribution involves fragmenting and tranforming documents between ODF and our data model.

1. Imre Barna, Péter Bauer , Kinga Bernád, Zsolt Hernáth, Zoltán Horváth, Balázs Kőszegi, Gergely Kovács, Tamás Kozsik, Zsolt Lengyel, Róbert Roth, Sándor Sike , Gábor Takács Eötvös Loránd University Introducing ODF to Mobile Platforms

3. Mobile platforms

4. Chosen software platform and its limitations

5. Prototype tools and tests

6. Document handling techniques

7. Conclusions

11. Smartphones

13. Different office software supported

15. Different mobile operating systems

16. Limited input interface

17. Small screen

18. Small batteries

19. Slow processors

21. Physical keyboard

22. Large screen

23. Stronger processors

24. Stronger batteries

25. Software for displaying office documents

27. Physical and/or virtual keyboard

28. Large screen

29. Powerful processor

30. Strong battery

31. Office suite with limited features

35. 3 font sizes

40. Style editing and applying

41. Combined tests

44. Separate style and editing scripts are faster than combined tests

46. Using different windows embedded in each other

48. Style

49. Meta

51. Style

52. Structure

54. Different ODF schema derivatives are needed for different feature sets

55. Document reduced dynamically to conform the selected schema derivative with markers

58. text processing

59. file operations

61. Result is sent to server site where a schema derivative is selected

63. Features may be removed or limited (recursion depth)

65. Sub-trees may need to be detached from the document tree

67. Visualization of placeholders of removed elements

69. Fragments are edited on mobile site

71. Removed sub-trees are restored from marker database

72. Integrated document is transformed back to desktop ODF format

74. Feature sets are based on evaluated use cases

75. Schemata are derived from ODF schema

79. Splitting schema into layers

81. Schema controlled editor is to be implemented