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The many faces of information technology interruptions: a taxonomy and…

- - - - IT intrusions are defined as perceived, IT-induced or IT-mediated, external events that are irrelevant to performing primary task activities
      - IT interventions are defined as perceived, IT-mediated, external events that reveal a discrepancy between performance expectations and actual performance of primary task activities
    - - IT interruptions can be system generated (system interruptions with no explicit content)
      - IT interruptions can be mediated by the system (i.e human-generated)
        
        include two content types: informational and actionable
        
        informational interruptions involve one-way dissemination of information and require processing primarily at the cognitive level
        
        Actionable interruptions require processing primarily at the behavioural response level whether in the form of communicative action (email discussion over a project proposal) or material action (email requesting a sales report)