Chapter 1. Introduction

download PDF

1.1. About the Rule Development Guide

This guide is intended for software engineers who want to create custom YAML-based rules for Migration Toolkit for Applications (MTA) tools.

See the Introduction to the Migration Toolkit for Applications for an overview and the CLI Guide for details.

1.1.1. Use of <MTA_HOME> in this guide

This guide uses the <MTA_HOME> replaceable variable to denote the path to your MTA installation.

The mta-7.0.3-cli<OS>.zip* extracts a single binary called mta-cli.

When you encounter <MTA_HOME> in this guide, replace it with the actual path to your MTA installation.

1.2. The MTA rules

The Migration Toolkit for Applications (MTA) contains rule-based migration tools (analyzers) that you can use to analyze the application user interfaces (APIs), technologies, and architectures used by the applications you plan to migrate. MTA analyzer rules use the following rule pattern:


You can use the MTA rules internally to perform the following tasks:

  • Extract files from archives.
  • Decompile files.
  • Scan and classify file types.
  • Analyze XML and other file content.
  • Analyze the application code.
  • Build the reports.

MTA builds a data model based on the rule execution results and stores component data and relationships in a graph database. This database can then be queried and updated as required by the migration rules and for reporting purposes.


You can create your own custom analyzer rules. You can use custom rules to identify the use of custom libraries or other components that might not be covered by the provided standard migration rules.

Red Hat logoGithubRedditYoutubeTwitter


Try, buy, & sell


About Red Hat Documentation

We help Red Hat users innovate and achieve their goals with our products and services with content they can trust.

Making open source more inclusive

Red Hat is committed to replacing problematic language in our code, documentation, and web properties. For more details, see the Red Hat Blog.

About Red Hat

We deliver hardened solutions that make it easier for enterprises to work across platforms and environments, from the core datacenter to the network edge.

© 2024 Red Hat, Inc.