 This module will serve as an introduction to customization in data collection within DHIS2. Some of the key principles that we will discuss in this module include overall DHIS2 design, the naming of DHIS2 data elements, and the different data collection tools that are available within DHIS2. Through this module, we will also demonstrate the creation of the following objects within DHIS2. Organization units, organization unit groups, and organization unit group sets, data elements, data element groups, and data element group sets, and default and section-based data sets. Don't worry if you're not familiar with these terms yet, as we will go over them in a bit of detail during the various sessions. Within this module, we will also demonstrate the use of the Web Data Entry Application, Android Data Capture App, SMS, and PDF and other import types to bring data into DHIS2. In this course, we will discuss some of the fundamental principles associated with the concepts that I have described. To learn more about how to customize DHIS2, consider the Level 1 Design and Customization Academy. You can read more about this academy on our website, and we will also discuss this in a bit more detail in a separate presentation. Let's go ahead and get started with the module.