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# Introduction

## Scope

Debugger is a graphical user interface for the Erlang interpreter, which can be
used for debugging and testing of Erlang programs. For example, breakpoints can
be set, code can be single-stepped, and variable values can be displayed and
changed.

Debugger can also be accessed through the interface module `m:int`.

## Prerequisites

It is assumed that the reader is familiar with the Erlang programming language.

Modules to be debugged must include debug information, for example,
`erlc +debug_info MODULE.erl`.