Legacy: This topic discusses extending operation views created using the Windows version Operations Dashboard for ArcGIS. This version of the application has been moved to Mature Support status. To learn more about the latest web-based version, see Operations Dashboard for ArcGIS.
Here are more details about the types of extensions:
You can share your extensions with groups within your organization after the extensions have been hosted on your web server, taking the following into consideration:
When you open an operation view, the extension authored in the operation view loads automatically in the Windows or browser app. The extension runs as a web app from the web server.