ISO 8583 Financial transaction card originated messages — Interchange message specifications is the International Organization for Standardization standard for systems that exchange electronic transactions made by cardholders using payment cards.
Resources
Beginner's guide: http://www.lytsing.org/downloads/iso8583.pdf.
Introduction to ISO 8583: http://www.codeproject.com/Articles/100084/Introduction-to-ISO-8583.
Official specification:
- Part 1. Messages, data elements and code values: http://www.iso.org/iso/home/store/catalogue_tc/catalogue_detail.htm?csnumber=31628
- Part 2. Application and registration procedures for Institution Identification Codes: http://www.iso.org/iso/home/store/catalogue_tc/catalogue_detail.htm?csnumber=23632
- Part 3. Maintenance procedures for messages, data elements and code values: http://www.iso.org/iso/home/store/catalogue_tc/catalogue_detail.htm?csnumber=35363
