QC.EBU.IO primarily defines QC Items.
Each QC Item is represented as a QC Card that summarizes it.
Behind it there is a detailed specification of what the test is about and which Input and Output Parameters it includes. Links to related standards and examples are provided as well.
A programme does not need every test defined to be carried out – the key is to use the cards to build a viable test set for each of the programme's destinations.