You are here: CSP Developer’s Guide: Overview > 4 EXS API Application Development > Application Requirements
Overview
This section explains the modules you need in your application so that it will work effectively with the Converged Services Platform.
Create Core Modules First
When you begin developing your application, you must first create specific core modules. We recommend the following as a minimum set of core modules:
After you create all of your core modules, you can begin creating modules to meet your specific needs. For example, you might require a module that manages a relational database, another module to perform number lookups, and a module with a graphical user interface that displays channel-specific information.
Figure 4-5 Application Modules