Is the content of the book applicable to RESTful web services or only to SOAP/WSDL based services?
JavaEE now provides good support for RESTful web services, so it would be nice if the book or your modeling approach covered those as well.
Padmarag, our focus in this release has been with more traditional web service design.
The Model Accelerator extends and amplifies Rational Software Architect for WebSphere Software and we've worked hard at providing a complimentary set of capabilities. Out of the box, RSA provides a DSL and an associated transformation for designing and generating RESTful services. These capabilities would provide a good starting point for you if you are interested in modeling and generating RESTful services.