33
 Understanding Interoperability through Mobile Phones

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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Page 1: Understanding Interoperability through Mobile Phones

   

Understanding Interoperability through Mobile Phones

Page 2: Understanding Interoperability through Mobile Phones

   

Scenario ­ One

Page 3: Understanding Interoperability through Mobile Phones

   

mobile phones

Different manufacturers ­ >

Different Hardware ­ >Different Software ­ >Different Service providers ­ >

Image source: www.techmantra.info

Page 4: Understanding Interoperability through Mobile Phones

   

mobile phones

Call/SMS ­ >

Image source: www.techmantra.info

Page 5: Understanding Interoperability through Mobile Phones

   

mobile phones

Call/SMS ­ >

Image source: www.techmantra.info

Interoperability

Page 6: Understanding Interoperability through Mobile Phones

   

Scenario ­ Two

Page 7: Understanding Interoperability through Mobile Phones

   

mobile phones

Low Battery ­ >

Page 8: Understanding Interoperability through Mobile Phones

   

mobile phones

Low Battery ­ >

Page 9: Understanding Interoperability through Mobile Phones

   

mobile phones

Low Battery ­ >

Page 10: Understanding Interoperability through Mobile Phones

   

mobile phones

Low Battery ­ >

No interoperability

Page 11: Understanding Interoperability through Mobile Phones

   

mobile phones

Low Battery ­ >

Solution?

Page 12: Understanding Interoperability through Mobile Phones

   

Source: http://flickr.com/photos/hudsonfamily/1345296434/

Page 13: Understanding Interoperability through Mobile Phones

   

Source: http://flickr.com/photos/hudsonfamily/1345296434/

Solution???

Page 14: Understanding Interoperability through Mobile Phones

   

Source: http://flickr.com/photos/hudsonfamily/1345296434/

Standards!

Page 15: Understanding Interoperability through Mobile Phones

   

Source: http://flickr.com/photos/hudsonfamily/1345296434/

Standards!

What to standardize?

Page 16: Understanding Interoperability through Mobile Phones

   

Source: http://flickr.com/photos/hudsonfamily/1345296434/

Standards!

What to standardize?

How much to standardize?

Page 17: Understanding Interoperability through Mobile Phones

   

Source: http://flickr.com/photos/hudsonfamily/1345296434/

Standards!

What to standardize?

How much to standardize?

Page 18: Understanding Interoperability through Mobile Phones

   

Interoperability: a balancing act!

Standardization and Variability

Page 19: Understanding Interoperability through Mobile Phones

   Variability

Stan

dard

izatio

Page 20: Understanding Interoperability through Mobile Phones

   Variability

Stan

dard

izatio

n High

Low

Interoperability

Page 21: Understanding Interoperability through Mobile Phones

   Variability

Stan

dard

izatio

n More you standardize: easier it is to make systems 'talk' with each other.

High

Low

Interoperability

Page 22: Understanding Interoperability through Mobile Phones

   Variability

Stan

dard

izatio

n More you standardize: easier it is to make systems 'talk' with each other.

But, there is a catch! 

High

Low

Interoperability

Page 23: Understanding Interoperability through Mobile Phones

   Variability

Stan

dard

izatio

n 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'

High

Low

Interoperability

Page 24: Understanding Interoperability through Mobile Phones

   Variability

Stan

dard

izatio

n 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'

The real challenge is to remain 'different' but still be able to 'talk' to each other!

High

Low

Interoperability

Page 25: Understanding Interoperability through Mobile Phones

   Variability

Stan

dard

izatio

Page 26: Understanding Interoperability through Mobile Phones

   Variability

Stan

dard

izatio

Low

High

Interoperability

Page 27: Understanding Interoperability through Mobile Phones

   Variability

Stan

dard

izatio

Interoperability with middle­tier (adapter) tech

Low

High

Interoperability

Page 28: Understanding Interoperability through Mobile Phones

   

Example of Interoperability with middle­tier (adapter) tech

Page 29: Understanding Interoperability through Mobile Phones

   Source: http://users.pandora.be/worldstandards/electricity.htm

Page 30: Understanding Interoperability through Mobile Phones

   Source: http://users.pandora.be/worldstandards/electricity.htmSource: www.nokia­asia.com/link?cid=EDITORIAL_251325

Page 31: Understanding Interoperability through Mobile Phones

   Source: http://users.pandora.be/worldstandards/electricity.htmSource: www.nokia­asia.com/link?cid=EDITORIAL_251325

Page 32: Understanding Interoperability through Mobile Phones

   Source: http://users.pandora.be/worldstandards/electricity.htmSource: www.nokia­asia.com/link?cid=EDITORIAL_251325

Adapter

Page 33: Understanding Interoperability through Mobile Phones

   Variability

Stan

dard

izatio

Interoperability with middle­tier (adapter) tech

Interoperability without middle­tier tech