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Business Intelligence · 2025

Online Courses Analysis Dashboard

Star-schema modelling, DAX KPIs and three interactive pages of data storytelling.

Power BIPower QueryDAXData ModelingData Visualization

3

Report pages

Star schema

Model

DAX KPIs

Measures

Pricing & growth

Focus

The problem

Education platforms need to know which subjects sell, how pricing changes behaviour, and where growth is coming from — raw course exports answer none of that.

The solution

An end-to-end BI solution: data cleaned in Power Query, modelled as a star schema, measured with DAX, and presented as a decision-support dashboard for stakeholders.

Overview page

  • Total courses, lectures, subscribers and reviews as KPI cards
  • Subscriber distribution by subject
  • Yearly course growth trend and top courses by subscribers

Price analysis page

  • Average price by subject and price-category distribution
  • Price versus content duration analysis
  • Free versus paid comparison with engagement and review quality

Details page

  • Course-level performance metrics with drill-down
  • Subject and level filtering with dynamic slicing
  • Comparative analysis for identifying improvement opportunities

Results & impact

  • Web Development dominates subscriber count — the strongest, most consistent demand
  • Free courses attract volume, paid courses drive engagement and better reviews
  • Pricing clearly shapes perceived value and subscriber behaviour

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