What does supply chain mapping really mean?

The recent pledge by British prime minister Theresa May to invest a further GBP33m in fighting modern slavery, coupled with the importance of companies knowing what is happening in their supply chains, has led to an increased focus on supply chain mapping. But while there are many tools on the market offering such solutions, there is a lot of variation and confusion over what this actually means, according to Hannah Harris, product marketing manager at Historic Futures.