Electronic Document Interchange. It was one of the early ways of communicating different documents electronically. Things like invoices, orders, health document

Electronic Document Interchange. It was one of the early ways of communicating different documents electronically. Things like invoices, orders, health documents, shipping manifests, etc. It's pretty important for coordinating supply chains still. For instance take a look at these example files:https://secure.edidev.net/edidev-ca/help/Sample_Files/SampleX12EdiFiles.htm https://secure.edidev.net/edidev-ca/help/Sample_Files/Sample... I think for new development, it's been largely superseded by things like JSON, but for many applications, it's still kind of the thing.