Embraer began development of an ARINC 661-compliant cockpit display system with Esterel Technologies SCADE Solutions for ARINC 661 Applications. Over the past two years, Embraer has been able to build a fully-functional ARINC 661 demonstrator that includes all components necessary for CDS deployment under the ARINC 661 standard. The ARINC 661 demonstrator includes a fully-compliant ARINC 661 server based originally on Esterel Technologies SCADE 661 Server Creator using an automatic server generator. Embraer had successfully integrated a custom ARINC 661-4, widgets library, with Esterel Technologies widget library, designed with SCADE as the base. Embraer has also developed and integrated User Applications running on a IMA hardware system and communicating with the server using UDP over AFDX within a flight simulator system.This paper discuss the process followed by Embraer for development of the ARINC 661 demonstrator.