Buscemi, Maria Grazia and Ferrari, Laura and Moiso, Corrado and Montanari, Ugo Constraint-Based Policy Negotiation and Enforcement for Telco Services. In: Proceedings of the 1st IEEE & IFIP Theoretical Aspects of Software Engineering Conference (TASE’07). IEEE Computer Society, pp. 463-472. ISBN 0-7695-2856-2 (2007)Full text not available from this repository.
Telco services are evolving under several aspects: for instance, services may combine different telecommunication features (messaging, multi-media, etc.) and may be activated and controlled by applications deployed in a 3rd party domain. Telco infrastructures are following this trend by adopting service oriented architecture solutions, e.g. for composing services and for introducing uniform interaction models among services. In a SOA-based system, capabilities, requirements and general features of services can be expressed in terms of policies. Such policies are negotiated in order to define a service level agreement among the involved parties. In this paper we show how to specify, negotiate, and enforce policies for Telco services by using a constraint-based model, the cc-pi calculus. This language extends concurrent constraint programming with synchronous communication and local names, and with the notion of soft constraints, that generalise classical constraints to represent preference levels. In cc-pi calculus, policies are expressed as soft constraints and the parties involved in the negotiation as communicating processes. The model allows to specify complex scenarios in which policy negotiations and validations can be arbitrarily nested.
|Item Type:||Book Section|
|Identification Number:||INSPEC Accession Number: 9834233|
|Additional Information:||Index Terms * INSPEC o Controlled Indexing constraint handling , telecommunication services o Non Controlled Indexing Telco infrastructures , Telco services , cc-pi calculus , constraint programming , constraint-based model , constraint-based policy negotiation , service level agreement , service oriented architecture|
|Funders:||Research supported by the EU IST-FP6 16004 Integrated Project SENSORIA|
|Subjects:||Q Science > QA Mathematics > QA75 Electronic computers. Computer science|
|Research Area:||Computer Science and Applications|
|Depositing User:||Users 29 not found.|
|Date Deposited:||02 Mar 2011 14:44|
|Last Modified:||11 Jul 2011 14:33|
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