Understanding Interoperability through Mobile Phones
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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
Transcript of Understanding Interoperability through Mobile Phones
Understanding Interoperability through Mobile Phones
Scenario One
mobile phones
Different manufacturers >
Different Hardware >Different Software >Different Service providers >
Image source: www.techmantra.info
mobile phones
Call/SMS >
Image source: www.techmantra.info
mobile phones
Call/SMS >
Image source: www.techmantra.info
Interoperability
Scenario Two
mobile phones
Low Battery >
mobile phones
Low Battery >
mobile phones
Low Battery >
mobile phones
Low Battery >
No interoperability
mobile phones
Low Battery >
Solution?
Source: http://flickr.com/photos/hudsonfamily/1345296434/
Source: http://flickr.com/photos/hudsonfamily/1345296434/
Solution???
Source: http://flickr.com/photos/hudsonfamily/1345296434/
Standards!
Source: http://flickr.com/photos/hudsonfamily/1345296434/
Standards!
What to standardize?
Source: http://flickr.com/photos/hudsonfamily/1345296434/
Standards!
What to standardize?
How much to standardize?
Source: http://flickr.com/photos/hudsonfamily/1345296434/
Standards!
What to standardize?
How much to standardize?
Interoperability: a balancing act!
Standardization and Variability
Variability
Stan
dard
izatio
n
Variability
Stan
dard
izatio
n High
Low
Interoperability
Variability
Stan
dard
izatio
n More you standardize: easier it is to make systems 'talk' with each other.
High
Low
Interoperability
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
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
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
Variability
Stan
dard
izatio
n
Variability
Stan
dard
izatio
n
Low
High
Interoperability
Variability
Stan
dard
izatio
n
Interoperability with middletier (adapter) tech
Low
High
Interoperability
Example of Interoperability with middletier (adapter) tech
Source: http://users.pandora.be/worldstandards/electricity.htm
Source: http://users.pandora.be/worldstandards/electricity.htmSource: www.nokiaasia.com/link?cid=EDITORIAL_251325
Source: http://users.pandora.be/worldstandards/electricity.htmSource: www.nokiaasia.com/link?cid=EDITORIAL_251325
Source: http://users.pandora.be/worldstandards/electricity.htmSource: www.nokiaasia.com/link?cid=EDITORIAL_251325
Adapter
Variability
Stan
dard
izatio
n
Interoperability with middletier (adapter) tech
Interoperability without middletier tech
