Hot topics in autonomic computing

Policy-based computing is one of many techniques used to implement autonomic computer systems. The business function is expressed in terms of workflow (logic + actions) or behavioural rules to be performed in response to certain situations, which is decoupled from the implementation mechanism. The mechanisms are fixed at design time, but the actual run-time behaviour is decided by the policy. This facilitates contextual awareness as the policy may take account ofvarious environmental inputs from sensors and external software systems. Policy-based mechanisms are also very useful in specifying system behaviour - suchas when specifying Service Level Agreements, and subsequently monitoring whether these agreements have been adhered to. Policy-based configuration is highly versatile and generally applicable across a very wide application space. When compared with other autonomics techniques, policies represent one of the lowest risk and lowest cost solutions; because there is relatively low complexity. Represents state of the art concepts and practice INDICE: From the contents Towards an Autonomic Computing Testbed.- Categorizing and differencing system behaviors.- Invited Paper: Implementing Prato, adatabase on demand service.- Prize Paper: Enabling Policy-Driven Self-Management for Enterprise-Scale Systems.- Policies as Signals in Collaborative PolicyEngineering.- Policy-Based Context Modelling and Ontologies in Autonomic Applications to Facilitate the Information Interoperability in NGN.- Industry CaseStudy: Policy-driven self-management for an automotive middleware.- Exploiting Emergent Behavior for Inter-Vehicle Communication.- Autonomic Operations in Cooperative Stream Processing Systems.- Observer: keeping system models from becoming obsolete.

• ISBN: 978-3-7643-8544-6
• Editorial: BIRKHAUSER VERLAG.
• Encuadernacion: Rústica
• Páginas: 250
• Fecha Publicación: 01/02/2008
• Nº Volúmenes: 1
• Idioma: Inglés