您如何构建基于模块化/复合SOA的Web应用程序？

I am working on breaking a massive monolithic Rails website into smaller ones in order to reduce complexity, allow for independent updates, and all the other SOA goodness. What I would like is to have each "embedded" site to present its own UI, along with any other assets it may need as dependencies. So far the twitter widgets and google ads have been interesting examples as they provide distinct functionality via a s script tag.I am working on breaking a massive monolithic R