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Subject: RE: [soa-rm] Amazon.com and Hurricane Catrina - Service Context? Service "Veneer"?
Is there also a concept of a service having the same interface but by operating in a different domain (e.g. charity) it acts different for the same interface? In effect its business contract is changed by a business driver outside of its scope, while its functionality (collecting money) remains the same its imperative is changed by the wider business context in which it now sits.
Steve
From:
Ken Laskey [mailto:klaskey@mitre.org]
Apple also did this with their iTunes Music Store: click the link and you order a donation instead of a song.
This is why I keep insisting on differentiating between the service and the capability. The underlying capability is to collect money for a purpose. The service provides the interface for doing that. Typically, you invoke the capability through a service that enables you to buy a book (or a song) but a new service invokes that capability (with a new user facing interface for Apple; I haven't checked Amazon) to "buy" a donation. The power is the capability is reusable by making it accessible through a different service.
Now note if I buy something through a service that allowed me to specify the UPC code, I could buy a donation through their existing service with that UPC, i.e. reusing the service for a purpose similar to but different from its original purpose. In fact, several supermarkets around here do support that because they have little tear-off tablets at the checkout for certain hunger organizations and you can hand the clerk a page for $1, $5, or $10.
Many interesting variations and our RM just has to capture the concepts that can describe any of them. I think I'll mow the lawn and think about this some more.
Ken
On Sep 4, 2005, at 4:06 PM, Chiusano Joseph wrote:
One thing that I discovered regarding the horrible catastrophe in the Southern US is that Amazon.com enabled people to use its online ordering service to make a donation. One could use the credit card information that Amazon.com already had online to make a donation in what it called "1-Click Donation" (or something similar). So instead of placing an order for a book, CD, etc., your "order" was your donation, and you could view your "order" online, which (as I recall) would show the amount that you donated.
Something that came to my mind is: What would this placing of a "new face" on a existing service be called? Is it a different context for the ordering service? (i.e. in the context of Hurrican Katrina) Is it a "veneer" that was placed on top of the existing service? None of the above?
Joe
Joseph Chiusano Booz Allen Hamilton O: 703-902-6923 C: 202-251-0731 Visit us online@ http://www.boozallen.com
--- Ken Laskey MITRE Corporation, M/S H305 phone: 703-983-7934 7515 Colshire Drive fax: 703-983-1379 McLean VA 22102-7508
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