Traceability Systems Assessment in UK

What is traceability, what’s are the problems in the UK in food industries small , medium , large sizes. What kind of traceability systems there are using, what is the main challenge, what are the solutions, how we can help to make it better. I have visited 7 food industries in the Uk and will send you my research done which you can use to complete the dissertation. You will need to do the research and find how other companies do the traceability.