ALE IDoc--BDOC和IDOC的区别

一、说明

IDoc: An Intermediate Document (IDoc) is a SAP standard format for data transfer between systems.
IDocs are mainly used for Application Link Enabling (ALE) and for Electronic Data Interchange
(EDI). They are not used for processing inside an application.

DBoc: Business Documents (BDocs) are used by the CRM Middleware to exchange data with mobile
clients. Furthermore BDocs are the central data structure to process business objects internally.
In contrast to Idocs, for which the internal processing has to be implemented manually, the coding to
process BDoc may be generated automatically.

二、技术比较
Business Document

• tRFC or qRFC
• Usage in CRM for data exchange
• Possibly complex data structures
• both in transport and processing
  
• Runtime objects, e.g. services 　generated from BDoc repository　information
  
• Internally created
• Uses delta field communication

Intermediate Document

• Asynchronous
• Usage in ALE and EDI
• Consisting of 　control record，data record，status record
  
• Message-oriented
• Transfers all fields