Any set of persons working in a given functional or operational context, without formal hierarchical relationship :

1. Teams (and organizations) operating in project mode and\or in transverse mode.

2. Internal interfaces: relations between functional and operational departements, Marketing and R*D, Sales and Purchases, Headoffice / Regions...

3. External interfaces: relations of all the actors of a company working with a major customer, a major supplier, a strategic partner, or an institutional organisation..