Recently, I authored a post on the Software Engineering Institute blog about the use of the Architecture and Analysis Design Language. The purpose was to show the usability of the AADL toolset for evaluating safety aspect of a system architecture. The post details an user-experience from new AADL users for making safety evaluation of a system. If you are not familiar with the AADL language, this post can provide a good overview of the technology, especially for acquiring the basics and use the safety analysis tools integrated in the Open Source AADL Tool Environment (OSATE).
On another note, the Software Engineering Institute also published a podcast which is an interview made by Suzanne Miller. The podcast is available on the SEI website but also on iTunes. It details some of the work I am currently involved for connecting several annexes of the AADL language together (the Behavior Annex and the Error-Model Annex). While being a little bit more technical than the blog post, it provides a good information about what is going on in the development of the AADL language.