Controlled Assessment Diary
This is evidence for a moderator that the practical work is your own. It needs to be detailed and include quality control and quality assurance throughout.
The controlled assessment diary will provide an excellent opportunity to write about and demonstrate each of the manufacturing steps, what equipment was used, what quality control was undertaken and any modifications that needed to take place at each stage of manufacture.
It is important that the manufacturing log includes quality control checks at key stages of the project to ensure your product will be completed to the highest possible standard.