Important terminologies

The important terminologies in AVEVA BI Gateway are:

Backfill

While configuring a refresh rate for a measure, you can provide a start date and time to start collecting data from the data source and populate the measure. You can provide a start date and time prior to the measure deployment date. The process of populating the measure for a period prior to the deployment date is called as back-filling.

Context

A context is established by relating a measure to a dimension. A context link provides a context for time-slicing. Time-slices obtained from time defining dimensions can have an associated context.

Dimension

A dimension is a structure that provides context to measures. Each dimension stores related items of data. A dimension stores contextual data. Dimension allows you to filter, group, and label measure data.

Data source

Data sources are the external source systems to which you can map the dimensions and measures in the AVEVA BI Gateway model. Data sources are the AVEVA BI Gateway objects in the AVEVA BI Gateway model. You configure the data source objects to provide connection information to the external data source systems.

Measure

A measure is a group of calculations that shares the same context. A measure consists of calculations for each source system, time period, and for each unique combination of dimension value.

BI Gateway model

An AVEVA BI Gateway model is a formal representation of the Data Sources, Dimensions, and Measures that are collectively called AVEVA BI Gateway "objects." The AVEVA BI Gateway model also represents the relationships and configurations of the AVEVA BI Gateway objects.

An AVEVA BI Gateway model is independent of any database schema and is optimized for manufacturing intelligence. The AVEVA BI Gateway model:

• Consists of three types of objects: Data Source, Dimension, and Measure.

• Contains measures typically representing quantitative aggregate operational data.

• Contains dimensions typically representing context for the measures.

• Defines relationships between the dimensions and the aggregated measures and how they map to the data sources.

The AVEVA BI Gateway model defines the dimensions and measures from one or more data sources as per mapping rules.

For more information about the Data Source, see "Data sources".

For more information about the Dimensions, see "Dimensions".

For more information about the Measures, see "Measures".