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Learn about entities
Historically, the Ardexa data model was simple: There are "devices" (the Ardexa appliance that sits at the site) and there are sources (the "things" that we are collecting data about). While this simple model works ok for basic data collection, it offers no flexibility, especially when it comes to relationships between sources or devices.
Entities aims to solve this problem. Entities are essentially like a folder on your desktop PC:
  • They can have a name
  • They can contain "files" which are just streams of data from from one or more devices
  • They can have metadata
  • They can contain more nested entities to create a heirarchy (currently limited to a "parent/child" relationship)
In the following articles, you will learn how to create and edit entities to help you model your data in a way that makes sense to you and you desired outcomes.