anchor.diff:  
   == Backend
   
  -Writing the backend turned out to be a breeze, using JEE 7 technologies:
  +Writing the backend turned out to be a breeze, using JavaEE 7 technologies:
   
   * *Plain Java* to model the *domain classes*, such as `Speaker`, `Room`, etc.
   * *JAXRS* to expose a *REST service* to serve data to the webUI.
  
positive.code: We're calling the prototype https://github.com/ge0ffrey/optaconf[OptaConf] and it's under Apache License.
  
  For the past 4 years, I 've been working in my corner of the world (OptaPlanner, Drools, etc),
  so my experience on other enterprise Java technologies (JEE) is getting a bit stale.
  Presentations (such as those at Devoxx) keep me in touch with the ever changing Java enterprise world,
  but nothing beats getting some personal hands-on experience by writing a realistic webapp.
  
  
negative.code: 
  == Conclusion
  
  On the backend, it has become a lot simpler. JavaEE 7 just works. It's much simpler than it's predecessors. Most rough edges are gone.
  For full disclosure: I work for Red Hat, so I stuck to their implementations whenever there was a choice.
  
  On the frontend however... there's just so much choice and so many trade-offs between the technologies,
  