Comments on: More clues on the Oslo/SCA/SML trail: it’s “D” http://stage.vambenepe.com/archives/214 IT management in a changing IT world Mon, 26 Jul 2010 20:24:03 +0000 http://wordpress.org/?v=2.9.2 hourly 1 By: William Vambenepe http://stage.vambenepe.com/archives/214#comment-45530 William Vambenepe Sun, 15 Jun 2008 06:32:42 +0000 http://stage.vambenepe.com/?p=214#comment-45530 Thanks a lot for the pointers Tal. I'll check them out on Sunday. Even though David clarified in the comment that follows yours that the Israel presentation doesn't have the same content as the US TechEd talk. And thank you David too for the clarifications and opinions. WRT to SCA interop vs. portability I fully agree that it doesn't provide any interop. But these are not the only two dimensions. From a systems management perspective SCA is interesting not because it lets the same composite app be deployed on different platforms but because it provides a comprehensive model of dependencies, policies, etc... Thanks a lot for the pointers Tal. I’ll check them out on Sunday. Even though David clarified in the comment that follows yours that the Israel presentation doesn’t have the same content as the US TechEd talk.

And thank you David too for the clarifications and opinions. WRT to SCA interop vs. portability I fully agree that it doesn’t provide any interop. But these are not the only two dimensions. From a systems management perspective SCA is interesting not because it lets the same composite app be deployed on different platforms but because it provides a comprehensive model of dependencies, policies, etc…

]]> By: David Chappell http://stage.vambenepe.com/archives/214#comment-45516 David Chappell Sat, 14 Jun 2008 22:55:11 +0000 http://stage.vambenepe.com/?p=214#comment-45516 Some responses, William: - As far as I know, Microsoft hasn't said anything publicly about how Oslo's new schema language relates to SML. I don't speak for them anyway, so all I can do is give my personal perspective, which is this: Even though the Oslo schema language isn't the same as SML, I could imagine that it might be possible to surface information defined in this language as SML. I could also imagine that this might make sense for some of what's defined in the Oslo repository. Will Microsoft actually do this? I really don't know. - How Oslo compares with SCA is something I'm also really interested in. Oslo is a much bigger and broader effort, covering lots more terrain than SCA, but some aspects of Oslo might be analogous to SCA composites. The Oslo repository's schema for application, for instance, can describe a composite application, including references to services provided by other software (e.g., an SAP or Oracle application). A more detailed comparison will have to wait until at least Microsoft's Professional Developer's Conference this fall, when they tell us that lots more detail will be made public. - The SCA standards really are about portability only, not interoperability. The specs make this clear, but to be sure, I discussed this point with several of the orginal creators of SCA, all of whom agreed. Since SCA defines no new wire protocols at all, how could it possibly define anything new for interoperability? As with the Java EE specs, there's plenty of potential value in portability--having this focus is entirely reasonable. Also, my talk at TechEd Israel was completely different from the Oslo talk at TechEd US. The US talk was the first time that a good chunk of this Oslo information was made public, and so I couldn't say any of it in the earlier presentation in Israel. Some responses, William:
- As far as I know, Microsoft hasn’t said anything publicly about how Oslo’s new schema language relates to SML. I don’t speak for them anyway, so all I can do is give my personal perspective, which is this: Even though the Oslo schema language isn’t the same as SML, I could imagine that it might be possible to surface information defined in this language as SML. I could also imagine that this might make sense for some of what’s defined in the Oslo repository. Will Microsoft actually do this? I really don’t know.
- How Oslo compares with SCA is something I’m also really interested in. Oslo is a much bigger and broader effort, covering lots more terrain than SCA, but some aspects of Oslo might be analogous to SCA composites. The Oslo repository’s schema for application, for instance, can describe a composite application, including references to services provided by other software (e.g., an SAP or Oracle application). A more detailed comparison will have to wait until at least Microsoft’s Professional Developer’s Conference this fall, when they tell us that lots more detail will be made public.
- The SCA standards really are about portability only, not interoperability. The specs make this clear, but to be sure, I discussed this point with several of the orginal creators of SCA, all of whom agreed. Since SCA defines no new wire protocols at all, how could it possibly define anything new for interoperability? As with the Java EE specs, there’s plenty of potential value in portability–having this focus is entirely reasonable.

Also, my talk at TechEd Israel was completely different from the Oslo talk at TechEd US. The US talk was the first time that a good chunk of this Oslo information was made public, and so I couldn’t say any of it in the earlier presentation in Israel.

]]> By: Tal Shahar http://stage.vambenepe.com/archives/214#comment-45509 Tal Shahar Sat, 14 Jun 2008 19:25:41 +0000 http://stage.vambenepe.com/?p=214#comment-45509 Hi Willian, Has I wrote the Hebrew stuff which is hard to read by some :-) see below the English base of it. Here are links to the PPT, WMV and WebCast of David's Presentation I found on the Microsoft Israel Blogs. I am not translating the post due to the fact that David explains himself better then I do. PPT: http://download.microsoft.com/download/2/f/3/2f34caea-2910-42cd-90b7-acd2ac9f2367/STR%20102.ppt WMV: mms://iwebcast1.you-niversity.com/iarchives/STR102_SG01W.WMV WebCast: http://webcast.you-niversity.com/youtools/ytclient/ndarchive_6_0/default.aspx?StudentName=Guest&ArchiveCode=4_16_2008-11_23_39&AttendaceID=0 More presentation David (and others) gave at TechEd Israel 2008 (in English): http://blogs.microsoft.co.il/blogs/dotmad/archive/2008/05/18/tech-ed-israel-2008-lectures-for-english-speakers.aspx Try this link too: http://channel9.msdn.com/Showpost.aspx?postid=357112 Enjoy Hi Willian,

Has I wrote the Hebrew stuff which is hard to read by some :-) see below the English base of it.
Here are links to the PPT, WMV and WebCast of David’s Presentation I found on the Microsoft Israel Blogs.
I am not translating the post due to the fact that David explains himself better then I do.
PPT: http://download.microsoft.com/download/2/f/3/2f34caea-2910-42cd-90b7-acd2ac9f2367/STR%20102.ppt

WMV: mms://iwebcast1.you-niversity.com/iarchives/STR102_SG01W.WMV

WebCast: http://webcast.you-niversity.com/youtools/ytclient/ndarchive_6_0/default.aspx?StudentName=Guest&ArchiveCode=4_16_2008-11_23_39&AttendaceID=0

More presentation David (and others) gave at TechEd Israel 2008 (in English):
http://blogs.microsoft.co.il/blogs/dotmad/archive/2008/05/18/tech-ed-israel-2008-lectures-for-english-speakers.aspx

Try this link too: http://channel9.msdn.com/Showpost.aspx?postid=357112

Enjoy

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