5 Brutal Truths Why Your “Single Source of Truth” Power BI Isn’t Single

Read time: 2.5 minutes

The Harsh Reality of Your Power BI "Single Source of Truth"

1. One dataset does not equal one definition.
Same data, but two different revenue versions.
Solution:
Create a common metrics layer across the different data sources.
1 KPI = 1 Definition.

2. Reports do not change user behavior.
Users will export a report, change it and distribute it to others.
Solution:
Use only verified datasets and limit the ability to export KPIs.

3. Accurate does not equal consistent.
Filters, date and granularity vary for the same report.
Solution:
Homogenize all reports using a standard date table and a consistent filtering logic.

4. Time changes the truth.
Logic that can change without anyone knowing.
Solution:
Implement version control and keep track of changes to KPIs.

5. Power BI is not the truth.
It is only a representation of the data.
Solution:
Separate the different layers of the data:
- Data
- Model
- Metrics
- Report

💡Key Takeaway: 

Many interpretations of the same dashboard exist due to a lack of a single source of truth.