Information Architecture informs the content strategy through identifying word choice as well as informing User Interface Design and Interaction Design through playing a role in the prototyping process.
Main components of Information Architecture consists of:
Organization of Schemes and Structures: How to categorize and present structure information
Labeling Systems: How to further represent and identify information that leads user to desired path and behavior
Navigation Systems: How users browse and ingest information
Search Systems: How users search and find information
In order to create these systems of information, you need to understand the interdependent nature of users, content, and context that is displayed in this Venn Diagram.