.. glossary:: ******** Glossary ******** .. glossary:: Signal Signal is where the data are stored. For example temperature data. Item An item can be created from one or more signals and it has more metadata than a signal. For example from the temperature signal you can create two items: one that has the temperature in Fahrenheit and one which has the temperature in celsius units. Metadata Metadata is where you can put information about the signal or the item.