It will be helpful to understand the following terms:
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PI Data Archive - Allows for efficient retrieval of tag values, present, and past.
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PI Asset Framework - Provides a hierarchical description of assets and equipment in a plant ("Elements") with associated fields such as tag values and user-entered or calculated data ("Attributes").
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Event Frames - A feature in the PI Asset Framework. It records periods of interest for particular elements. Each event frame contains data associated with specific elements over a period of time. The period's length is usually decided by its automated analysis rules, but can be manually created. This is useful for identifying events and analyzing trends, causes, and correlations.
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Data source - The term used by j5 to describe external systems like the PI system from which j5 retrieves data.