> ## 1 Introduction

> ### 1.1 About this document

> The SASL application provides support for:

> - error logging
> - alarm handling
> - overload regulation
> - release handling
> - report browsing.

> In addition to this introductory part, the User's Guide includes the following chapters:

> - Chapter 2: "SASL Error Logging" describes the error handler which produces the supervisor, progress, and crash reports which can be written to screen, or to a specified file. It also describes the report browser `rb_server`.
> - Chapter 3: "The Release Structure" provides an overview of the Erlang release tools and processes.
> - Chapter 4: "Release Handling" describes the administration and principles of release handling in detail.

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