The Analytical Psychology of Carl Gustav Jung investigates the basic pattern of human behaviour, thinking and feeling, which characterises every individual, independent of culture, disposition or upbringing. These collective basic patterns (archetypes) have the strongest influence on the human psyche and yet are not immediately accessible, as they lie beneath the threshold of awareness.
In my approach of Applied Depth Psychology I research the consideration and integration of archeytypes in the development of multilayered multimedia systems.

The integration of archetypes can occur on two levels:
1. At system level (e.g. with the modelling of user applications and system users or with the system architecture)

2. At development process level (in particular in the creative phase and the earlier analysis phase)

This integration of depth psychology concepts and methods expands the system design from a predominantly engineering discipline to a holistic discipline.

The methods of analytical psychology differ fundamentally from those of conventional sciences. Instead of objective observation the depth psychologist uses subjective experience. He gains access to the unconscious through personal experience and the subsequent scientific reflexion of this experience. Only then can he let the qualities of the archetypes influence his practical work.

For the most part complex systems interlink a great variety of different individuals and groups. The system designer who is trained in depth psychology can integrate the powerful unconscious aspects of these interconnections into the planning and development of his system. This occurs for example during the board's strategy development, in the creative team or during usability tests.