TY - CHAP ED - Arbab, Farhad ED - Sirjani, Marjan SN - 978-3-540-75697-2 EP - 239 ID - eprints417 N2 - We define a type system for COWS, a formalism for specifying and combining services, while modelling their dynamic behaviour. Our types permit to express policies constraining data exchanges in terms of sets of service partner names attachable to each single datum. Service programmers explicitly write only the annotations necessary to specify the wanted policies for communicable data, while a type inference system (statically) derives the minimal additional annotations that ensure consistency of services initial configuration. Then, the language dynamic semantics only performs very simple checks to authorize or block communication. We prove that the type system and the operational semantics are sound. As a consequence, we have the following data protection property: services always comply with the policies regulating the exchange of data among interacting services. We illustrate our approach through a simplified but realistic scenario for a service-based electronic marketplace. PB - Springer T2 - International Symposium on Fundamentals of Software Engineering (FSEN 2007) AV - public N1 - ©Springer-Verlag Berlin Heidelberg 2007. The original publication is available at www.springerlink.com T3 - Lecture Notes in Computer Science SP - 223 TI - Regulating Data Exchange in Service Oriented Applications Y1 - 2007/// UR - http://dx.doi.org/10.1007/978-3-540-75698-9_15 A1 - Lapadula, Alessandro A1 - Pugliese, Rosario A1 - Tiezzi, Francesco M1 - 4767 ER -