# `Dmn.Model.Expressions.Relation`
[🔗](https://github.com/FeeJai/BDM/blob/dmn-v0.1.0/apps/dmn/lib/dmn/model/expressions.ex#L164)

A `relation`: its `columns` (`Dmn.Model.InformationItem`) and its `rows`, each the list of the values of the columns.

# `t`

```elixir
@type t() :: %Dmn.Model.Expressions.Relation{
  columns: [Dmn.Model.InformationItem.t()],
  id: String.t() | nil,
  label: String.t() | nil,
  line: pos_integer() | nil,
  rows: [Dmn.Model.Expressions.ListExpression.t()],
  type_ref: String.t() | nil
}
```

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*Consult [api-reference.md](api-reference.md) for complete listing*