Having defined the tasks and functions, the information needs to be consolidated into an appropriate format. The structured document should capture all of the requirements that a product must satisfy to be successful and inclusive. Critical sections include

• Performance requirements
  • Geometry, forces, weights
  • Aesthetics, finish, colour
  • Usability, including context of use and targets for capability demand
• Cost requirements
  • Target material and labour costs
• Process requirements
  • Scheduling and timings
  • Normal use, special use, misuse

A key objective for the document is to ensure that the information is presented in an easily accessible and unambiguous format. The most appropriate headings and sub-categories will ultimately depend on the application being considered.