Information Requirement in DMN (Decision Model and Notation) refers to the concept of specifying the information required to make a decision within a business process. This can include the data, information, or knowledge that is needed to support the decision-making process, as well as the sources of that information.
For example, a line might connect a decision to a data source to represent how the decision relies on information from that data source. Similarly, a line might connect a knowledge base to a decision to represent how the decision relies on knowledge from that knowledge base.