How Power BI fits in fabric

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Unified Data Platform:

Microsoft Fabric is an end-to-end data platform that provides a unified approach to data integration, management, and analytics. It combines a set of services like Data Factory, Azure Synapse, Data Lake, Data Engineering, and Power BI to allow seamless data workflows and insights.
Power BI serves as the front-end visualization layer of this ecosystem. While Fabric handles data preparation, transformation, and storage, Power BI provides business users with powerful data exploration and reporting tools on top of that data.
Data Integration and Preparation:

Fabric offers data integration and engineering tools (such as Data Factory and Data Engineering), which help in preparing and transforming data for reporting. Once the data is processed, Power BI can easily connect to these datasets to create actionable visualizations.
Power BI can connect to datasets stored in Data Lakes, Synapse, or Azure SQL, pulling data directly from these sources into interactive reports.
Real-Time and Scalable Analytics:

Power BI supports real-time analytics on top of large-scale data. Within the Fabric ecosystem, it can connect to Azure Synapse Analytics for large-scale, high-performance querying. This allows users to perform analytics on data stored in Data Lake or Synapse without worrying about performance or scalability.
DirectQuery and Composite Models in Power BI enable users to work with real-time data across different Fabric components without having to load data into Power BI itself, improving efficiency.
Collaboration and Sharing:

Power BI integrates deeply with Microsoft 365 tools, including Teams and SharePoint, facilitating collaboration and sharing of insights. This means that organizations using Microsoft Fabric can seamlessly share reports and dashboards within their organization or with external partners.
In the Fabric ecosystem, Power BI reports and dashboards can be embedded in other applications or accessed as part of a data-driven workflow, increasing accessibility and decision-making.
Data Governance and Security:

Power BI in the Fabric ecosystem benefits from Microsoft’s data governance and security models. Power BI integrates with Azure Active Directory (AAD), enabling fine-grained control over who can access and share reports, ensuring compliance and data security.
Additionally, Fabric's data lineage and data governance features ensure that the data flowing into Power BI reports is well-governed and traceable, providing confidence in the reports' integrity.
Power BI as a Service Layer:

With Power BI Premium and Power BI Embedded, organizations can scale Power BI reports to large numbers of users, and even embed Power BI visuals into their custom applications.
Fabric allows users to manage the entire data lifecycle—from ingestion, transformation, and storage to analysis and visualization—all within a single platform. Power BI acts as the interface through which business users can interact with this data, create reports, and make data-driven decisions.