TY  - CHAP
N1  - SCOPUS ID: 2-s2.0-84984819032;
ID  - eprints3562
EP  - 49
T2  - Service-Oriented and Cloud Computing.5th IFIP WG 2.14 European Conference, ESOCC 2016, Vienna, Austria, September 5-7, 2016, Proceedings
Y1  - 2016///
TI  - Dynamic SLAs for Clouds
AV  - none
UR  - http://doi.org/10.1007/978-3-319-44482-6_3
SN  - 0302-9743
PB  - Springer
A1  - Uriarte, Rafael Brundo
A1  - Tiezzi, Francesco
A1  - De Nicola, Rocco
SP  - 34
N2  - In the Cloud domain, to guarantee adaptation to the needs of users and providers, Service-Level-Agreements (SLAs) would benefit from mechanisms to capture the dynamism of services. The existing SLA languages attempt to address this challenge by focusing on renegotiation of the agreement terms, which is a heavy-weight process, not really suitable for dealing with cloud dynamism. In this paper, we propose an extension of SLAC, a SLA language for clouds that we have recently defined, with a mechanism that enable dynamic modifications of the service agreement. We formally describe this extension, implement it in the SLAC framework and analyse the impacts of dynamic SLAs in some applications. The advantages of dynamic SLAs are demonstrated by comparing their effect with that of static SLA and of the ?renegotiation? approach.
T3  - Lecture Notes in Computer Science
ER  -