ArcGIS Platform
The ArcGIS Platform is a Platform as a Service (PaaS) that contains ready-to-use, data hosting, and content management services. To interact with the Platform, you can use out-of-the-box tools and applications to create and manage content and data for your applications. You can use ArcGIS, open source, or third-party APIs to build custom mapping and spatial analysis applications that access data and services. All applications and APIs interact with location services through their REST API.