Which I is more Important? Information, Interaction or Interface Design???

As we know, each website design consists of three basic elements:
1) Information Design -> Content & Strategy
2) Interaction Design -> Navigation
3) Interface Design -> Presentation
As a web designer, we have to be expert in all three above. Interface design is important which helps users to understand the message of application without any trying to read the manual or training. Interaction design is effective which actively engages users to control over the delivery of information. It seems these two elements have main role to make a relationship between users and application because of visualization, but the role of information design cannot be underestimated which involves contents and how these contents be arranged in the application.
Interaction and Interface design are important which users can see them, feel and touch them. But about the information design, it needs more understanding and deeper comprehension. Moreover, conveying a message is the main reason of creating any web production, which this role is a task of information design. Therefore, I can claim however the designing of how this message transfers is important –interface and interaction design-, the message itself –information design- is more prominent because of its value and nature.