The VDP's Architecture

The six levels: so that the user remains in seventh heaven

Customer specific I/O client (HTML, Ajax...)
ODBM OKM OLM OAM OIM OMR OCR ...    
VSpeak Custom Implementations
VDP Core Services
High performance SQL / PHP
Hardware layer (64bit Linux)

SOA Service Oriented Architecture

Thanks to SOA we can achieve an unknown level of interoperability. Of course, each module offers generic or differentiated interfaces for the connection to existing IT infrastructures.