The term "summarization" is the same as "data compression" and "Lo Res." The following terms can also be used (they are used interchangeably throughout these sections): Summarized Data vs Compressed Data vs Lo Res Data.
Similarly, "Hi Res" and "Raw" are the same.
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Raw data represents real-time monitored data. Summarized data is presented in reports and charts. To distill the raw data into summarized data for reports and charts, you create a history rule and attach it as a concrete rule to a monitored object or attach it to one or more monitored objects as a history rule template.