TY - CHAP N2 - Contracts are a well-established approach for describing and analyzing behavioral aspects of web service compositions. The theory of contracts comes equipped with a notion of compatibility between clients and servers that ensures that every possible interaction between compatible clients and servers will complete successfully. It is generally agreed that real applications often require the ability of exposing just partial descriptions of their behaviors, which are usually known as abstract processes. We propose a formal characterization of abstraction as an extension of the usual symbolic bisimulation and we recover the notion of abstraction in the context of contracts. M1 - 46 TI - Contracts for Abstract Processes in Service Composition AV - public UR - http://dx.doi.org/10.4204/EPTCS.46.2 N1 - ©M.G. Buscemi & H. Melgratti This work is licensed under the Creative Commons Attribution License. ID - eprints115 T2 - Proceedings Foundations for Interface Technologies (FIT?10). EP - 27 A1 - Buscemi, Maria Grazia A1 - Melgratti, Hernán C. PB - Electronic Proceedings in Theoretical Computer Science T3 - Electronic Proceedings in Theoretical Computer SP - 9 Y1 - 2011/01// ED - Legay, Axel ED - Caillaud, Benoît ER -