FEEL Contexts - Gnorion/BizVR GitHub Wiki
Contexts FEEL has context literals that you can use to create contexts. A context in FEEL is a list of key and value pairs, similar to maps in languages like Java. The DMN specification currently does not provide an explicit way of declaring a variable as a context
Example:
{ x : 5, y : 3 } In this example, the expression creates a context with two entries, x and y, representing a coordinate in a chart.
In DMN 1.2, another way to create contexts is to create an item definition that contains the list of keys as attributes, and then declare the variable as having that item definition type.