analytics-dictionary / term / bi & reporting

Data visualization

Data visualization is presenting data in charts, maps and graphics so patterns are easy to see.

Written by Reflective Data experts · updated Oct 5, 2026

The best chart depends on the question: line charts for trends, bar charts for comparisons, tables for exact numbers. Clarity beats decoration.

Tools like Looker Studio, Power BI, Tableau and Metabase turn warehouse data into visualisations.

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Self-service BI lets business users explore data and build reports themselves, without waiting for analysts.

A live connection queries the warehouse every time a dashboard loads; an extract is a stored…

Metabase is an open-source business intelligence tool for simple, self-serve exploration of data.

Ad hoc analysis is a one-off investigation to answer a specific question, rather than a recurring…

Drill-down lets you move from a summary to the underlying detail, for example from country to…

A calculated field is a new value computed from existing fields inside a BI tool, such…