Concept design is the fundamental of interaction design and the deepest level of design decisions. A concept in this context is described as a bridge between the designer and the users, who will only be able to make effective use of the interface if they grasp the underlying intent of the concept that is designed.
A concept consists of three parts:
- Purpose
- Structure
- Behaviour
Let’s look at the concept of a MacOS trash as an example.
The purpose of a trash in this case is to allow users to undo deletions. Based on this purpose, when the main action “delete” is performed, we know that it is an action we could undo. The structure of this trash is in a folder structure, meaning, it can contain both folders and files. This is important because the structure allows us to understand which actions can be taken with this concept. Finally, we have a behaviour. The behaviour shows us that whenever we delete a file or a folder, it is actually moved to a different folder called…