SOA Governance: Balancing Process and Agility
By now everybody has heard over and over how governance is critical to the success of any SOA Implementation. Companies implementing SOA must provide the proper level of governance required to achieve reuse and flexibility without negatively impacting their team's ability to innovate and be agile.
Not enough process creates chaos
There are a number of reasons why companies do not have a robust enough governance model. Here are a few reasons that I have seen:
Lack complete understanding of both design time and runtime best practices
Culture does not support standards and best practices
Lack of funding for governance resources and tools
Without an effective governance model, your dreams of SOA nirvana can turn into nightmares of down systems, high development costs, unmanageable production environments and unhappy customers. To get the reuse, flexibility, agility, and ease of integration that SOA promises, design time governance must ensure that services are built in a consistent manner that provides business value, meets certain performance and security requirements, is platform neutral, and does not break anything that already is deployed.
Runtime governance is crucial because of the distributed and abstract nature of SOA. A single business service may be made up of a number of components within numerous layers of the architecture. When that service fails, you better have the proper processes and tools in place to quickly identify the issues and to recover before your customers notice first.
Then there is the complexity of managing service versioning, proactively monitoring performance and security, ensuring compliance and enforcing regulatory controls, and much more.
Implementing SOA without a solid governance model is the equivalent to having an airport without a control tower. Sure, there are some very good planes and talented pilots, but without the proper planning and timely information the end results would be disastrous. So make sure you build a control tower and hire some air traffic controllers!
