EDI layered architecture
EDI layered architecture
- Semantic (or application) layer
- Standards translation layer
- Packing (or transport) layer
- Physical network infrastructure layer
EDI semantic layer:
- Describes the business application
- Procurement example
- Specific to company & software used
EDI Standard layer(Standards translation):
- Specifies business form structure so that information can be exchanged
- Two competing standards:-
1. The ANSI ASC X12 Standards
• The X12 standard defined a set of documents, which are referred to as transaction sets. • The common documents and their corresponding transaction set numbers: 850 P.O, 810 Invoice, 855 P.O. Ack., 856 Ship Notice
2. EDIFACT Standards
• A combination of the ASC X12 standards and the Trade Data Interchange (TDI) standards developed in the United Kingdom and used throughout Europe.
2) EDI transport layer
- How the business form is sent, e.g. post, UPS, fax
- Increasingly, e-mail is the carrier
- Differentiating EDI from e-mail
- Emphasis on automation
- EDI has certain legal status
3) Physical network infrastructure layer
Dial-up lines, Internet, a value-added network, etc.
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