I have picked one of the favorite topics that I have received most emails on; namely SOA Governance, and would like to expand it to the topic of SOA Governance for the Service Eco-system.
But let's start small: inside the organization. Within the organizational dimension, we have the need for governance and specifically SOA Governance.
To ensure that the SOA Life-cycle is carried out correctly, we need the support provided by SOA Governance.
SOA Governance is more like an umbrellla activity that 1)oversees the functioning of the SOA Life-cycle and 2)defines relevant, currently apropos policies, 3) inserts control points and 4) communicates these policies, the values expected at specific control points to 5) ensure compliance with those policies with artifacts produced by activities conducted within the life-cycle.
Governance is more declarative; management is executive. SOA Governance declares policies and activities it expects to see, and delegates to management to carry out these actions to ensure conformance to policies, or sometimes, more importantly, to determine why a given activity, project or artifact must obtain an exception and WHY IT SHOULD NOT CONFORM to the governance policies.
BPM, APIs & Service-oriented Architecture: Insights and Best Practices
From archive: March 2006 X
Ali_Arsanjani 120000D8QB 1,170 Views
George Galambos and I gave a talk last week at the annual IBM Technical Leadership Exchange about a topic that we have been talking about for some time now: the service eco-system. If you want to build a service eco-system you may need to look at some patterns that help you build your service eco-system .
As we move towards greater maturity in the adoption of SOA,there are a number of key challenges that need to be overcome. I like to call them the Grand Challenges of SOA. The first 9 are:
1. Business Case for SOA
2. SOA Maturity and Roadmap: What do I do next?
3. Service-oriented Modeling and Architecture end-to-end
4. Industry Specific SOA
5. Building composite applications
6. Monitoring and managing across the eco-system
7. Governing the SOA eco-system
8. Eco-system flexibility with declarative policies, service management and externalized functionality.
9. Service proliferation challenges quality of service
What do you think?
Ali_Arsanjani 120000D8QB 1,042 Views
SOA Governance is about the governance of the three fundamental elements of SOA, namely, services, components and flows. So we are governing the process, the artifacts around services, components and flows. In the SOMA Method, the SOA Method used to model, analysis design services, components and flows, we identify, specify and realize these elements.
This relates to the monitoring of these elements throughout the life-cycle; putting in control and check points and policies around corrective action as we develop these.
Governance seeks to ensure adherence to/compliance with policy along the execution of a set of process steps that may start from the manual/human aspects of the life-cycle and continue onward into the runtime enviironment. It often accomplishes this goal by planning and instituting a set of check points or control points where process results are cross checked/validated with a set of standards (including permissible alternatives) as defined by policy.
SOA Governance sees to it that these elements are relevant to the organization (vitality), are being reviewed and validated by stakeholders and being communicated within the organization as the service model is being constructed within the life-cycle.
The governance of the service life-cycle is necessary to ensure that the needs of the business is supported by a set of flexibly re-composable IT services or components.
In order to do so, there needs to be policies, principles, checkpoints, reviews put into place from a process perspective; the execution of this is delegated to management Run-time governance of SOA on the other hand involves runtime monitoring of events and service execution to ensure compliance with the qualities of service declaratively defined by SOA policies.
Ali_Arsanjani 120000D8QB 1,328 Views
Nasa has announced that one of its satellites have spotted a truly wonderful phenomena leading to the conclusion that it may have found evidence of liquid water reservoirs that erupt in Yellowstone-like geysers on Saturn's moon Enceladus.
After a long dry spell of blogging due mostly to heavy engagement on customer projects, I mark my midnight ruminations with the blog update. Multiple SOA projects in several industries: electronics, telecom and insurance. Sometimes I feel like what the satellite may feel like! Constant travel to meet with customers, find and fix their problems strategic and tactical in their journey towards SOA.
Like Cassini, I also discover some strange and wonderful things on client projects: the key challenges encountered on SOA projects. One of these is reklated to the human factor and the great influence of that factor versus the technical aspects of software engineering: the dynamics of organizations, people, communications, reporting, expectation setting and managing as well as mentoring others.
I play two roles: Chief Architect on client projects and university professor. As part of my latter duties I feel a need to convey some of my experiences to the next generation of software engineers that I teach in the following courses: Advanced Software Engineering, Dynamics of Software Architecture and Service-Oriented Architecture at the graduate level.
As I discuss how to become a software architecture with the masters in computer science I teach at MUM, one thing strikes me as very insightful to pass on to the students: that technology is many times the easy part! It seems to be the softer human skills that the architect needs to acquire for maximum effectiveness on SOA projects.