Implementing a data structure with DL/I

When you implement a data structure with DL/I, you implement it as a hierarchy. A hierarchy is made up of segments.

In a hierarchy, a one-to-many relationship is called a parent/child relationship. In a hierarchy, each segment can have one or more children, but it can have only one parent.

When you use DL/I, consider how each of the data elements in the structure you developed should be grouped into segments. Also, consider how DL/I can solve any existing data conflicts in the structure.