Contributions submitted to Topics on ThinkCycle (called notes) are categorized as Challenges, Concepts, Resources and so on. All notes consist of a title, brief summary, online links, images and files. You may create a note in any existing Topic or place it in 'General ThinkCycle Contributions and Resources'. Notes can later be moved to other relevant categories or topics.

Two examples of notes include:

• Challenges are well-posed problem statements describing the constraints and issues involved in design for specific problems.
  
• Concepts describe a design approach or method towards solving a particular challenge. These may be exploratory ideas or on-going design iterations. Design concepts are untested solutions in the process of prototyping and peer review.