What is the meaning of the word "upstream"?

It means to go upstream to find the place of origin, comparing with seeking the historical roots upward.

The word "traceability" means to go back to the source, to search for the root of a thing; the earliest is the food safety management system that was gradually established and perfected by the European Union in 1997 to cope with the problem of "Mad Cow Disease". This set of food safety management system is promoted by the government, covering the food production base, food processing enterprises, food terminal sales of the entire food industry chain upstream and downstream, through a similar bank ATM system of specialized hardware equipment for information **** enjoyment, services to the final consumer.

The traceability system can realize the function of 100% two-way traceability of all batches of products from raw materials to finished products and from finished products to raw materials. The most distinctive feature of this system is the data security, where every manual input is backed up by the software in real time.

The establishment of the system, once the relevant accidents, regulators will be able to use the system to determine whether there is negligent behavior of the enterprise, the enterprise can also use the system to find out which link, which step has a problem.