http://ayende.comAyende @ RahienCopyright (C) Ayende Rahien 2004 - 2021 (c) 202660Udi's latest MSDN article talks a little bit more about this as well: [msdn.microsoft.com/.../aa699424.aspx](http://msdn.microsoft.com/en-us/architecture/aa699424.aspx) See Figure #7. The article is basically a recap of he European ALT.NET presentation found here: [www323.livemeeting.com/cc/usergroups/view?id=van-1](https://www323.livemeeting.com/cc/usergroups/view?id=van-1)http://ayende.com/4233/using-a-service-bus-for-queries#comment2http://ayende.com/4233/using-a-service-bus-for-queries#comment2Thu, 08 Oct 2009 11:58:17 GMTI think this was my forum question. Was excited to see it in the post queue ... not so much now after the scolding :) I remember reading your previous post ('the cost of messaging') and not understanding it ... I didn't know what a sequence diagram was. It makes a lot more sense now. "But a service isn’t just something that is running in a server somewhere." This was my confusion. Also, don't know if this is poor form to link to another blog but I also found this helpful after asking the question: [www.udidahan.com/.../command-query-separation-a...](http://www.udidahan.com/2008/08/11/command-query-separation-and-soa/)http://ayende.com/4233/using-a-service-bus-for-queries#comment1http://ayende.com/4233/using-a-service-bus-for-queries#comment1Wed, 07 Oct 2009 02:24:58 GMT