On Nov 11, 2007, at 7:13 PM, Jeffrey A. Estefan wrote:
Bob & Friends,
Attached is MY proposed cut at a static conceptual model for SOA Governance and SOA Management. The reason I'm proposing this version is that the models I've seen proposed to date are far too general in nature and tend to model Governance in the abstract, not necessarily SOA Governance. I've also uploaded this model to our Kavi site.
Here's how to interpret the visual model and a variant of what would be described in the RA text:
1. SOA Governance is a specialization of IT Governance
2. Similarly, SOA Management is a specialization of IT Management
3. Service Policies & Contracts are related to SOA Governance & SOA Management by means of a SOA Governance & Management Process
4. This process makes use of a SOA Governance & Management Infrastructure, which is comprised of a SOA Governance Board, which (not shown in the visual model) determines decision rights, sets service policies, and defines service contracts. The SOA Governance & Management Infrastructure is also comprised of a set of Management tools; namely, a Service Policy Management Systems and a Service Contract Management System. Each of these systems may optionally make use of a Registry-Repository System to manage the service policies & contracts artifacts and their associated meta-level descriptions.
We'd want to start off our description of this View by saying the Governance (in general) is about decision making while Management (in general) is about execution. Note that I did not model Architecture Governance, which is also a specialization of IT Governance but we should talk about it briefly in the RA text. The message is that SOA is a paradigm, not AN architecture so we're really not talking about governing a specific architecture, although folks developing SOA-based concrete architectures should address the issue of Architecture Governance.
I admit this is primarily an enterprise perspective of SOA Governance & SOA Management, but it's a start. The main message I wanted to convey here was to really distinguish governance from management, something that a lot of folks out there really don't get. And arguably why there has been so much written on the subject of SOA governance in recent past.
Of course, we'll need to go into more detail on the temporal issues related to SOA governance and management, which we can do with Activity diagrams. Recall that Don has already made a cut at this. And we still need to address the four (4) topics Frank captured at the beginning of the Governance Model section of Working Draft v0.2 of the RA.
Since we'll be wrapping up the next round of RA issues that have focused on the Realizing an SOA View in the coming weeks, I wanted to get this out there to prepare for turning our attention to the Owning SOAs View.
- Jeff E.<SOA_Governance_Model-DRAFT.png>
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