How does a web map differ from a web layer?

A web layer refers to individual data sets that can be displayed on a map, such as a layer showing streets, satellite imagery, or demographic data. These layers can be dynamic and can represent various types of geographic information.

On the other hand, a web map serves as a container or configuration for one or more web layers. It defines how these layers are organized, displayed, and interacted with. This includes aspects like layer visibility, symbology, and map extent. Thus, a web map isn't just a simple aggregation of layers; it includes settings that dictate how the information is presented to users.

This distinction between data (the web layer) and how that data is configured and visualized (the web map) is crucial because it underlines the difference between raw geographic information and the user experience designed for accessing that information. Recognizing this difference helps in understanding how to effectively use ArcGIS Pro for creating and managing web-based geographic services.