# Introduction

In this module you will learn more about questionnaires and structured data capture (SDC). 

The topics covered in this module are:
- The Questionnaire and QuestionnaireResponse resources
- Other resources that are relevant to questionnaires
- Profiling of Questionnaires and QuestionnaireResponses
- The structure data capture (SDC) initiative and implementation guide (IG)
- Pre and auto population of QuestionnaireResponses