Provide a brief introduction to the device/system, including notes describing the expected users, the context of use, the sort of tasks that the thing is used for and the technology required to support it.
Summarise existing research that is relevant to device/system. This might include a theory of operation, or notes on the history of development, or even expectations for the future of this kind of thing. Make sure you cite these references properly (see References, below).
How it works
Explain clearly how the device/system/product works. Provide at least one diagram illustrating this. Don’t forget to give your diagram an appropriate caption in text below it (e.g. Fig. 2 How it works). You do not need to go into a lot of technical detail but should outline the design concept and the basic parts and operation of the system. If it is flexible and could be used in different applications, explain how.