Qt Extended Modules

Overview

Qt Extended is a selection of modules for Qt enabling optimized software development for embedded Linux devices. Each module is a combination of libraries, plug-ins, applications and server components and can be build independently form other modules. The module system has the following advantages:

• avoids inclusion of software not necessary for target device
• clearer separation of responsibilities
• better defined interfaces which abstract the various components
• easier selection process
• reduces complexity due to better defined component interaction

The following modules are provided as part of Qt Extended:

Modules assisting during the development process:

The Base module is mandatory and by itself provides the smallest possible Qt Extended configuration. It provides base functionality for all other modules and includes the Qt libraries.

Configuration management

Modules provide a high level selection of functionality. Each module consists of a number of components supporting the main features offered by a module. A component can be

• a library
• a plug-in
• an application
• or a server component

The image below illustrates the connection between components and modules:

Components can depend on each other but a module does not have dependencies to a component in another module (dependencies are indicated by brown lines in the above diagram). The only exception is the Base module. This simplifies the selection and configuration process as developers can concentrate on feature selection rather than on solving dependency issues. From the build systems point of view a component is defined by a project file.

• Module concept
• Building modules
• Reference designs

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