Understanding B2B

Important questions:
1. Who are your trading partners?
2. What B2B specification will be used for message exchange(EDI, EDIFACT, HL7, Custom, HIPPA etc)
3. What protocol(AS1,AS2, ebMS) will be used, transport medium(  FTP, HTTP)
4. Synchronous or Asynchronous
5. Connection pattern

1. Point-to-point: Invoice
2. One-to-many: quote for price
3. hud and spoke: HIPPA
4. Many-to-Many: emarkets

B2B standards:

• ISO: International Standards Organization 
• UN/CEFACT: United Nations Center of Trade Facilitation and Electronic Business
• OASIS: Organization for Advanced of Structured Information and Standards
• OAGi: Open Applications Group
• RosettaNet
• ebXML
• Biztalk
• SWIFT:Society for worldwide Interbank Financial Telecommunication

https://en.wikipedia.org/wiki/Electronic_data_interchange