Tipus de projecte: Projecte europeu ; A portada: Universite catholique de Louvain. Institut de sciences du travail. ; Research project conducted on behalf of the Employment and Social Affairs DG of the European Commission ; This report aims to examine the process of social dialogue and to present the actors participating in that dialogue in the "C&M" sector in the 15 states member of the European Union (when we cite "the 15 states member of the European Union" or "UE15", please understand "the 15 states member of the European Union before the enlargement of the 1st May 2004"). The object of this comparative study can be resumed under three main points : 1. Description of the structuring of the whole of the C&M fields through certain key aspects which make it easier to compare one EU country with another. 2. Provision of an overview of the principal characteristics of the established professional relationships and the process of CB in the member states of the EU in this sector. 3. Provision of an overview of the main protagonists operating in this sector. The topics are the description of the sector (activities, organizations, employment and evolution), professional relations and collective negotiation (social dialogue, evolution and trends) and the players of the sector (employers' organizations and trade unions). We laid great stress on the importance to note the type of difficulty or obstacle the national experts could find in the collect of data. This study is intended to be an introduction to a subsequent piece of work, which will be concerned more specifically with the protagonists in the CB process for the CULTURE & MEDIA sector and their representatives in the UE15.