A variable is a series of data-points that change over time. In most applications it will represent a physical sensor that measures something from the real world, such as Temperature, Humidity, Pressure, Water Level, Disk Usage... or any time-stamped data!

This is a simple way of looking at our API structure:

For Ubidots core platform licenses, this structure is a bit larger, though:

You can create, edit or delete variables through either our front-end or our API.