Understanding Interoperability through Mobile Phones

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I used these slides to teach a class of 70 students from the Post Graduate Diploma and the Masters Programme in Information Systems, in the University of Colombo, Sri Lanka. August, 2008

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Understanding Interoperability through Mobile Phones

  1. 1. Understanding Interoperability through Mobile Phones    
  2. 2. Scenario ­ One    
  3. 3. mobile phones Different manufacturers ­ > Different Hardware ­ > Different Software ­ > Different Service providers ­ >     Image source: www.techmantra.info
  4. 4. mobile phones Call/SMS ­ >     Image source: www.techmantra.info
  5. 5. mobile phones Interoperability Call/SMS ­ >     Image source: www.techmantra.info
  6. 6. Scenario ­ Two    
  7. 7. mobile phones Low Battery ­ >    
  8. 8. mobile phones Low Battery ­ >    
  9. 9. mobile phones Low Battery ­ >    
  10. 10. mobile phones No interoperability Low Battery ­ >    
  11. 11. mobile phones Solution? Low Battery ­ >    
  12. 12.     Source: http://flickr.com/photos/hudsonfamily/1345296434/
  13. 13. Solution???     Source: http://flickr.com/photos/hudsonfamily/1345296434/
  14. 14. Standards!     Source: http://flickr.com/photos/hudsonfamily/1345296434/
  15. 15. Standards! What to standardize?     Source: http://flickr.com/photos/hudsonfamily/1345296434/
  16. 16. Standards! What to standardize? How much to standardize?     Source: http://flickr.com/photos/hudsonfamily/1345296434/
  17. 17. Standards! What to standardize? How much to standardize?     Source: http://flickr.com/photos/hudsonfamily/1345296434/
  18. 18. Interoperability: a balancing act! Standardization and Variability    
  19. 19.   Standardization  Variability  
  20. 20. High Standardization  Interoperability Low   Variability  
  21. 21. High More you standardize: easier it is to make systems 'talk' with  each other. Standardization  Interoperability Low   Variability  
  22. 22. High More you standardize: easier it is to make systems 'talk' with  each other. But, there is a catch!  Standardization  Interoperability Low   Variability  
  23. 23. High More you standardize: easier it is to make systems 'talk' with  each other. But, there is a catch!  Results in a 'homogeneous system': 'Obvious Interoperability' Standardization  Interoperability Low   Variability  
  24. 24. High More you standardize: easier it is to make systems 'talk' with  each other. But, there is a catch!  Results in a 'homogeneous system': 'Obvious Interoperability' Standardization  The real challenge is to remain 'different' but still be able to 'talk'  to each other! Interoperability Low   Variability  
  25. 25.   Standardization  Variability  
  26. 26. High Standardization  Interoperability Low   Variability  
  27. 27. High Standardization  Interoperability with middle­tier (adapter) tech Interoperability Low   Variability  
  28. 28. Example of Interoperability with middle­tier (adapter) tech    
  29. 29. Source: http://users.pandora.be/worldstandards/electricity.htm    
  30. 30. Source: http://users.pandora.be/worldstandards/electricity.htm Source: www.nokia­asia.com/link?cid=EDITORIAL_251325    
  31. 31. Source: http://users.pandora.be/worldstandards/electricity.htm Source: www.nokia­asia.com/link?cid=EDITORIAL_251325    
  32. 32. Adapter Source: http://users.pandora.be/worldstandards/electricity.htm Source: www.nokia­asia.com/link?cid=EDITORIAL_251325    
  33. 33. Interoperability with middle­tier (adapter) tech Standardization  Interoperability without middle­tier tech    Variability  

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