analytics-dictionary / tool overview / transformation & metrics

Omni

Omni is a business intelligence platform that combines a governed semantic model with flexible exploration.

Written by Reflective Data experts · updated Oct 5, 2026

Users can start from governed definitions and still drop down to SQL when needed. It aims to bridge self-service and strong governance.

It is one of several modern options for teams building a semantic layer with a BI front end.

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The staging layer holds lightly cleaned copies of source tables, one per source table, as the…

MetricFlow is the semantic layer technology used by dbt to define metrics and generate queries.

A dimension is an attribute used to slice or group metrics, such as country, device or…

LookML is the modelling language of Looker, used to define data models, dimensions and measures.

A slowly changing dimension is a descriptive attribute, like a customer segment, whose value changes over…

dbt is a tool for transforming data in a warehouse using SQL, with version control, testing…