Input Data denotes information and data which will be used by one or more decisions. They should be clearly named to indicate what information is provided.
Specific information should not be summarized. For all information, which has to be checked within the decision table, a separate data input element should be created. The label becomes unique, if it contains the name of the verifiable feature.
If you would like to label an input data element, just double click on it and type in a name.