Over the past couple of months I have been exposed to colleagues, professional acquaintances, and training that has discussed the merits of Agile Methodologies in creating a loose but improved development organization. One client that I work for has several teams that are employing short iterations and have improved their overall deliver of software functionality. The company has also spent time training the teams via experienced Agilists and employed collaboration software to support epics, mrf, user stories, product backlog etc.
Working in the architecture group, there is currently no process in place but we are considering applying Agile and short 2 week iterations to deliver value to the product teams. In essence have the product teams help define challenging issues to be solved to free them up and allow them to focus on their tactical user stories/development tasks. In addition having the architecture team sit in on the product teams iterations to identify / guide the development teams towards existing services in the domain/enterprise to reduce/eliminate rebuilding existing logic. This can be done by participating in the Iteration Planning Meeting at the beginning of each iteration.
From these experience I will be trying some role/organizational approaches towards SOA in an Agile environment. They include setting up clear versioning policies for the service contracts and using design patterns to decouple the contract from the logic. This will allow the contract to more easily change from its potential tactical definition to a more domain/strategic one.