One of your goals of your placement will be to document your development over the year. You could use the STAR technique describing:
Situation - How, where, when with whom?
Task - describe the task you undertook
Action - What action did you take?
Result - What did YOU achieve as a result
If you keep this acroymn in mind during you year you find it easy to record your results in a way lets people who read it understand your skills and competencies acquired. Your Year in Industry is not all about 'Tecnical Stuff' as you will need to develop other areas as well.