Data Acquisition. Data Acquisition collects time-series measurements from different layers including infrastructure, platform and media services. Data is collected to support service design, management and control decisions resulting in state changes in configuration items. The link between decisions and data is through queries and rules applied to contextual information stored with measurement values. The monitoring model uses an agent-based approach with hierarchical aggregation used as required for different time scales of decision-making, as shown in Figure 20.
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