The authors promote the use of transactional attributes for modeling business processes in the service-oriented scenario. Transactional attributes have been introduced in Enterprise JavaBeans (EJB) to decorate the methods published in Java containers. Attributes describe “Modalities” that discipline the reconfiguration of transactional scopes (i.e., of caller and callee) upon method invocation. An original element of their research programme is the definition and study of modeling and programming mechanisms to control dynamically reconfigurable transactional scopes in Service-Oriented Computing (SOC).