---
name: "Analizo::Metric::DepthOfInheritanceTree"
section: "3pm"
platform: "linux"
package: "analizo"
version: "1.25.5-1"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/Analizo::Metric::DepthOfInheritanceTree"
---

# Analizo::Metric::DepthOfInheritanceTree(3pm)

Depth of Inheritance Tree (DIT) metric

## NAME

Analizo::Metric::DepthOfInheritanceTree - Depth of Inheritance Tree (DIT) metric

## DESCRIPTION

The metric calculation is based on the following article and calculates the longest path from a module to the class hierarchy root.

Article: *An empirical study of aspect-oriented metrics* by Eduardo Kessler Piveta, Ana Moreira, Marcelo Soares Pimenta, Joao Araujo, Pedro Guerreiro and R. Tom Price.

See the adaptation of the paragraph about Depth of Inheritance Tree in the article:

Considering a function `"s(x) : Module -> Module"` that computes the super-class or super-aspect of a giver module, the value of DIT is given by:

```
  DIT(m) = DIT(s(m)) + 1, ifc m != rootClass
  DIT(m) = 0, otherwise.
```