1. RATIONALE Interaction is the most debated construct in the world of technology mediated learning design and development. In these settings, interaction is the defining attribute of the quality and value Interactivity (equated with interaction) is the most expensive component of a technology mediated learning design.

2. THE EVOLVING INTERACTION LANDSCAPE THEORIES (learning, pedagogy, communication) PERFORMANCE MANAGEMENT EXPERIENCE

3. THEORETICAL PERSPECTIVES Social Presence Social Transactions Transactional Distance Objectivism Constructivism Socially Shared Cognition Cased Based Reasoning Distributed Cognition Activity Theory Motivation Deeper Learning

4. FROM PERFORMANCE TO LEARNING Simple Complex LEARNING TASK TIME ON LEARNING TASK Low High DEEPER LEARNING DECISION SUPPORT PERFORMANCE SUPPORT COMPETENCY BASED LEARNING MASTERY LEARNING

5. The Experience Layer User visible experience Goals, tasks, perspective Look & feel Behavior and flow Practices & guidelines Runtime Rich client framework Components, behaviors, Managers, languages Server framework Data management, experience metrics, Debugging, profiling, security Shared objects Rich Client Server Experience Received Experience Created Web services App servers DBS THE EXPERIENCE LAYER