A conceptual framework for understanding and designing complex cultural user experiences in terms of multiple trajectories. Trajectories capture the idea of establishing a coherent journey through an extended experience that combines many different spaces, times, roles and interfaces. The framework identifies the different kinds of transitions and traversals that may occur along a trajectory and shows how diverging, converging and crossing trajectories describe important aspects of multi-user experiences and reflect the tension between pre-scripted narrative and interactivity.

  • Temporal Trajectories in Shared Interactive Narratives (Benford & Giannachi, Proceedings of CHI 2008). A precursor to the general trajectories framework that focuses specifically on trajectories through time. This paper introduces a conceptual framework for reasoning about time in narrative driven experiences such as games, hypermedia stories and interactive performances based upon the concept of temporal trajectories that express different mappings between fictional story time and actual clock time. Three kinds of temporal trajectory, canonical, participant and historic, enable us to reason about issues such as pacing, synchronisation and fictional time travel.

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