```json
//[doc-seo]
{
    "Description": "Learn to build modular web applications with ABP Framework in this tutorial, focusing on creating and communicating application modules."
}
```

# Modular Monolith Application Development Tutorial

````json
//[doc-nav]
{
  "Next": {
    "Name": "Creating the initial solution",
    "Path": "tutorials/modular-crm/part-01"
  }
}
````

ABP provides a great infrastructure and tooling to build modular software solutions. In this tutorial, you will learn how to create application modules, compose and communicate them to build a monolith modular web application.

> **This tutorial focuses on modularity.** The example application's functionality and user interface are intentionally kept simple. If you want to learn real world, full featured application logic development with ABP, please follow the [Book Store tutorial](../book-store/index.md).

## Tutorial Outline

This tutorial is organized as the following parts:

* [Part 01: Creating the initial solution](part-01.md)
* [Part 02: Setting Up the Catalog Module](part-02.md)
* [Part 03: Building the Catalog Module](part-03.md)
* [Part 04: Creating the initial Ordering Module](part-04.md)
* [Part 05: Building the Ordering Module](part-05.md)
* [Part 06: Integrating the modules: Implementing Integration Services](part-06.md)
* [Part 07: Integrating the modules: Communication via Messages (Events)](part-07.md)
* [Part 08: Integrating the modules: Joining the Products and Orders Data](part-08.md)

## Download the Source Code

You can download the completed sample solution [here](https://github.com/abpframework/abp-samples/tree/master/ModularCRM).

## See Also

* [Book Store: Web Application Development Tutorial](../book-store/index.md)