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Creating Web Presentation for Observatory and Planetarium with Topic Maps
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Creating Web Presentation for Observatory and Planetarium with Topic Maps

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The aim of the Topic Maps application for astronomers and visitors of Observatory and Planetarium in Hradec Králové is to help them to search resources related to astronomy. The Topic Maps document …

The aim of the Topic Maps application for astronomers and visitors of Observatory and Planetarium in Hradec Králové is to help them to search resources related to astronomy. The Topic Maps document can be immediately consulted during presentations and courses for public and can be reused for creation of web presentation of the Observatory. In the paper the process of the application development is summarized.

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  • 1. Creating Web Presentation for Observatory and Planetarium with Topic Maps Germany - Leipzig 17th October, 2008 University of Hradec Králové Faculty of Informatics and Management Martina Husáková 1
  • 2. Content of the presentation  Observatory in Hradec Králové  View of the original application used at the Observatory  Topic Maps as the new solution − Topic Maps document creation − Web presentation creation  Final state and future of the pilot application 2
  • 3. Observatory in Hradec Králové  Science and research: − performing photometric observations of variable stars and asteroids − astrometry of comets, study the dynamics of small Solar system bodies  Cultural program: − observation of the Sun or evening performance − specialized scientific lecturers − systematic education 3
  • 4. Photograph of the Observatory 4
  • 5. Original application used at the Observatory  File-manager like application written in Tcl/Tk 5
  • 6. Topic Maps document creation  Development of the Topic Maps document (TMd) was realised in diploma thesis  One of the main goals: verification feasibility Topic Maps approach  Domain expert (final user) helped with keeping objective accuracy of information presented in TMd  Requirenments for the content of the TMd were specified ... 6
  • 7. Requirenments for the TMd User´s requirements Priority Capturing the ontology of astronomical terms high Topics implementation high Implementation of associations among topics to enable navigation high External occurrences implementation medium Defining internal occurrences medium Defining topic names in different languages high 7
  • 8. Resolution connected with usage of the TMd  The 1st version of the TMd in editor Ontopoly that fulfils most of the requirenments  Resolution: Topic Maps and Ontopoly is very suitable solution for the Observatory needs  Practical usage of the TMd with OKS Samplers for the pilot version  Resolution of the next consultation: it is better to have own web application  Requirenments for the web application were specified ... 8
  • 9. Requirenments for the web application based on Topic Maps User´s requirements Priority Intuitive navigation high Clear organization of web pages high Possibility to search Topic Maps elements high Possibility to visualize Topic Maps document in expandable high graph structure Possibility to edit elements of the Topic Maps document from medium web-based forms Online presentation of the Topic Maps document high 9
  • 10. Experience with Ontopoly  Ontopia Navigator Framework (ONF) was chosen for the web application creation  At the beginning only experiments with ONF  One serious problem occured: − Web pages created with ONF contain ID values of the Topic Maps elements. If we modify TMd in Ontopoly, ID values change => we have to change ID values in web pages almost all the time  Next step → searching more suitable tool for TMd creation 10
  • 11. Next Topic Maps editors  Wandora, TMTab plugin, TM4L  LTM syntax written in NotePad was tried too, but this way is unsuitable for the customers  TM4L editor was chosen because of: − Intuitivenes in control over the environment − Low price − Installation with no sweat − Automated testing of web sources − And mainly: if we modify TMd, ID values of the Topic Maps elements are steady 11
  • 12. Next steps ...  Detection: TMd created in Ontopoly could be opened in TM4L (ver. 1, 2), but taxonomy was not saved  Solution: developing TMd once more in TM4L (ver. 2)  After some white nights, we came up to creating web application with ONF and TM4L ... :-) 12
  • 13. Web presentation creation  Developing simple web pages with ONF lies in the use of the tolog query language  JSP web pages contain tolog queries that: − extract relevant information from the TMd − represent these information on the web pages  Firstly scope of the web had to be stated => only concepts related to selected objects of the Solar system were taken into account  Predefined layout was chosen and adjusted for our purposes ... 13
  • 14. Home page 14
  • 15. Topic Sun 15
  • 16. Czech/English dictionary 16
  • 17. Evaluation and future of the web application  Navigation scheme and organization of pages are clear and easy to use  It is possible to quickly detect association(s) between topics 17
  • 18. Concluding words ... „The universe is a pretty big space. It's bigger than anything anyone has ever dreamed of before. So, if it's just us, seems like an awful waste of space, right?“ Carl Edward Sagan 18
  • 19. ? ? Thank you for your attention! ? Questions ... ? ? ? ? 19

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