Application Integration Framework Overview
- Services - Enable you to expose business logic written in X++ as a service to be consumed by other applications. Within Microsoft Dynamics AX, you can create, customize, and publish services.
- Document services - A specific implementation of services in which the Microsoft Dynamics AX business logic is exposed through document services.
- Consume Web services - In Microsoft Dynamics AX, you can consume external Web services from your X++ code.For origional post follow below link-Harry