This deliverable outlines the boundaries of a CORTEX² application and differentiates it from existing virtual applications such as those in the domains of gaming and entertainment. The specificity of CORTEX² applications is their focus on cooperation and collaboration. This leads to the use of functionalities adapted to this use cases, which we classify under the name of CORTEX² applications. To this aim, we have developed an abstract UML model, as well as concepts and knowledge about behaviors and intentions that are suited to the development and use of CORTEX² application. After presenting the developed model of application, behaviors and intentions, we validate the model across the planned pilots and verify the applicability of the models. Finally, we stress societal and ethical factors that are important for CORTEX² applications.