RE: [service-orientated-architecture] RE: SOA Governance work

[Mukund Balasubramanian]

Anne:   You are perfectly right. The composition is a pretty important facet and central to bridging between different varieties of Policy and WS-Policy defines that well.   One attempt at a namespace for defining assertions on SLA is http://www.research.ibm.com/wsla/ on the namespace http://www.ibm.com/wsla.   The WSM vendors definitely all need to define the internal facet of policy (configuration) since they all provide agents. There is not a whole lot of reason to do that in a standards compliant manner in the short term.   The external facet is much more standard sensitive and there is little reason to do this unless this is done in a standards compliant fashion.   Mukund Balasubramanian   From: Anne Thomas Manes [mailto:[EMAIL PROTECTED] Sent: Tuesday, November 29, 2005 5:33 PM To: service-orientated-architecture@yahoogroups.com Subject: Re: [service-orientated-architecture] RE: SOA Governance work   WS-Policy defines a framework for composing policy assertions, but it does not define standard policy assertion languages. - WS-SecurityPolicy defines a standard policy assertion language for specifying security policies. - WS-ReliableMessaging Policy Language (part of the WS-RM spec) defines a standard policy assertion language for specifying reliable message delivery policies. - WS-AtomicTransaction also defines a policy assertion language. No such standard policy assertion language yet exists for specifying SLAs. All WSM vendors provide their own means to specify SLAs, and they all provide agents for monitoring SLAs and taking remedial action. But for the moment, it's all proprietary. Anne On 11/29/05, Mukund Balasubramanian <[EMAIL PROTECTED]> wrote: "WS-Policy/Policy Attachment and its Assertions do a great job in "composing" Assertions especially ones that are external. Others such as synapse rules XML will be used for "composing" aspects that are internal" The language here is expressed within WS-Policy/Policy Attachment; the agent here could be Apache Synapse. Mukund Balasubramanian   From: Logan, Patrick D [mailto:[EMAIL PROTECTED]] Sent: Tuesday, November 29, 2005 4:00 AM To: service-orientated-architecture@yahoogroups.com Subject: [service-orientated-architecture] RE: SOA Governance work   "An SLA policy assertion language should allow you to specify service level objectives in a standard way such that a monitoring agent can determine whether or not the SLA is at risk of being broken..." Are there any such languages and agents available? Thanks, Patrick   SPONSORED LINKS Service-oriented architecture Computer monitoring software Computer and internet 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.   SPONSORED LINKS Service-oriented architecture Computer monitoring software Computer and internet 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.