Choose Your Level
Pick the difficulty that matches where you are. You can come back and try a harder level later.
Design a Dashboard Wireframe
Sketch a dashboard layout for a retail store manager with clear information hierarchy.
Build Filters and Drill-Downs
Design interactive dashboard filters that let users slice data by region, product, and time.
Real-Time Monitoring Dashboard
Design a live operations dashboard with alert thresholds and anomaly detection.
Business Intelligence & Interactive Dashboard Design (Power BI / Tableau)
Business Intelligence (BI) tools translate complex raw data into intuitive visual dashboards for decision-makers. Recruiters evaluate candidates on dimensional data modeling (Star Schema vs Snowflake Schema), writing DAX/LOD measures, and building clean visual hierarchies.
1. Interactive BI Dashboard File
Power BI (.pbix) or Tableau (.twbx) workbook featuring interactive slicers, KPI scorecards, and trend visualisations.
2. Dimensional Data Model Blueprint
Data model diagram documenting Star Schema relationships, fact tables, and dimension tables.
3. DAX / LOD Measure Specification
Documented library of calculated DAX measures (CALCULATE, SUMX) or Tableau Level of Detail expressions.
Frequently Asked Questions (Dashboard Design & BI Tools)
Why is a Star Schema preferred over flat tables in Power BI?
Star Schemas eliminate data redundancy, simplify relationship cardinalities, and drastically improve DAX query evaluation speeds.
What is the function of the CALCULATE() measure in Power BI DAX?
CALCULATE() evaluates an expression under modified filter contexts, allowing analysts to override or expand visual filters dynamically.
How many visuals should be included on a single dashboard page?
Limit dashboard pages to 4 to 6 core visuals to prevent visual clutter and maintain high rendering performance.
Explore Data Analytics Career Paths
Build proof of work across other topics or view full career roadmaps mapping technical skills to hiring expectations.