🟩 Module 1: Introduction to Power BI
🎯 Objective:
Understand what Power BI is, its components, and how to get started with Power BI Desktop.
📌 1. What is Business Intelligence (BI)?
- BI refers to tools and techniques used to convert raw data into meaningful insights.
- Helps in data-driven decision-making using reporting, dashboards, and visualizations.
📌 2. What is Power BI?
- Power BI is a Business Intelligence tool by Microsoft.
- Used to visualize data, share insights, and create interactive dashboards.
- Transforms raw data into interactive reports and dashboards.
📌 3. Key Features of Power BI
- Interactive visualizations
- Real-time dashboards
- Data modeling capabilities
- Custom calculations using DAX
- Integration with Excel, SQL Server, SharePoint, and more
📌 4. Components of Power BI
| Component | Description |
|---|---|
| Power BI Desktop | Windows application for report development |
| Power BI Service (Cloud) | Online platform to share and collaborate |
| Power BI Mobile | Mobile app to view dashboards and reports |
| Power BI Gateway | Connects on-premises data to cloud service |
| Power BI Report Server | Host reports on-premises (for enterprise) |
📌 5. Power BI vs Excel
| Feature | Power BI | Excel |
|---|---|---|
| Visualization | Advanced & interactive | Basic |
| Performance | Handles large datasets | Limited for big data |
| Sharing Reports | Via cloud (Service) | Manual or OneDrive |
| Data Modeling | Advanced (relationships) | Limited |
📌 6. Installing Power BI Desktop
- Go to: https://powerbi.microsoft.com/desktop
- Click Download Free
- Install and launch the application
📌 7. Power BI Desktop Interface Overview
| Section | Purpose |
|---|---|
| Ribbon | Tools for file, visuals, data, modeling |
| Report View | Build visuals and dashboards |
| Data View | View and analyze tables |
| Model View | Create relationships between tables |
| Fields Pane | List of all imported tables and fields |
| Visualizations Pane | Choose and customize charts |
📌 8. First Practical Step (Demo)
- Load a sample Excel or CSV file
- Create a bar chart with Sales vs Category
- Apply basic formatting (title, data labels)
✅ Summary
- Power BI is a powerful BI tool used for creating dashboards and reports.
- It includes tools like Power BI Desktop, Service, and Mobile.
- The interface includes Report, Data, and Model views.
- You can start analyzing data by loading a file and building a simple chart.
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