Application Model Overview : Service Definition Files

Service Definition Files
ActiveGrid Applications treat the rendering of each Page in the application as a Service, using Service Definition files to orchestrate communication between the Pages in the application. The Service Definition file defines the type of data the Page expects (the Page’s inputs) as Page Messages (Page Message). The Page Message is also used as the output message of each Page.
ActiveGrid bases the Service Definition file on an industry standard, the Web Services Definition Language (WSDL) document. Service Definition files end in the .wsdl suffix.
In addition to the Page Messages, Service Definition files specify input and output messages for all the other Services (Services) the application can access (with the exception of the built-in Data Service).
Every ActiveGrid Application has at least one Service Definition file that defines the messages for each Page in the application. The messages for other services can be defined in the same Service Definition file or in separate files.
Related Topics:
Client-Server Interaction: The Life of a Request
Page Message
Web Services
How the Files Work Together

ActiveGrid
ActiveGrid Documentation
Version 2.0