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A method is proposed whereby values for Service Level Objectives (SLOs) of an SLA can be chosen to reduce the sum IT infrastructure cost plus business financial loss. Business considerations are brought into the model by including the business losses sustained when IT components fail or performance is degraded. To this end, an impact model is fully developed in the paper. A numerical example consisting...
The promise of policy-based management is lessened by the risk of conflicts between policies. Even with careful conception of the policies it is difficult if not impossible to avoid conflicts completely. However, it is in principle possible to detect and resolve conflicts either statically or at runtime. Taking advantage of existing managed systems models it is even possible to detect and resolve...
Presently, there is no satisfactory model for dealing with political autonomy of agents in policy based management. A theory of atomic policy units called ‘promises’ is therefore discussed. Using promises, a global authority is not required to build conventional management abstractions, but work is needed to bind peers into a traditional authoritative structure. The construction of promises is precise,...
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