Re: [service-orientated-architecture] What is a Service? What is an Application?

[Ron Schmelzer]

Here are some other (time wasting) questions to answer: * What is a message? * What is data? * What is metadata? * What is the difference between EAI and ESB? (watch out, this one is a flame troll) The answer is: who cares! Does it matter how a Service is defined? If anything, it matters more about how to implement the *right* kind of Services than make one feel better about whether or not one has one ;) Getting the answer to "what" is a Service or application right is not important. Getting the answer as to HOW to do Service-orientation right makes a world of difference. Yes, this is a flame troll ;) Best, Ron Jan Algermissen wrote: >> Some of the definitions I've come across for a Service are: IMHO, substitutability (of one service by another) is an important  concept. If you go to shoe order processor A and find it is down, you  can equally well turn to shoe order processor B, given you know they  are substitutable. A real world example is that you can use another Web search engine if  your favorite one is down, because you happen to know that they are  both Web search engines. HTH, Jan -- _____________________________________________________________ Ronald Schmelzer [EMAIL PROTECTED] Senior Analyst ZapThink LLC Direct: 781-577-2779 / Main: 781-207-0203 SPONSORED LINKS Service-oriented architecture Computer monitoring software Free computer monitoring software YAHOO! GROUPS LINKS  Visit your group "service-orientated-architecture" on the web.    To unsubscribe from this group, send an email to:  [EMAIL PROTECTED]    Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.