What feature in ArcGIS Pro allows for sharing maps and data online?

ArcGIS Online integration is the feature that enables users to share maps and data online effectively. This integration allows users to publish their maps, layers, and apps to the ArcGIS Online platform, which serves as a cloud-based GIS service. It facilitates the collaboration and dissemination of geospatial content across different users and organizations, making it easier to reach a wider audience and share insights derived from geographic data.

With ArcGIS Online, users can also create web maps and web apps that can be accessed through a web browser, ensuring that their work is not limited to desktop environments. This capability means that users can utilize shared content in various ways, from embedding maps in websites to using them in presentations, all while maintaining access to the latest updates and functionalities offered by the platform.

In contrast, the Catalog pane primarily serves as a tool for managing and organizing geographic content, the Data View is focused on the visualization and editing of spatial data without inherent sharing functions, and Spatial Analysis tools are designed for processing spatial data rather than for sharing it. Each of these plays distinct roles within ArcGIS Pro but does not directly facilitate the sharing capabilities that are inherent to ArcGIS Online integration.