The development of a cognitive task analysis is presented that assesses the task load of jobs and provides indicators for the redesign of jobs. General principles of human task performance were selected and, subsequently, integrated into current task modelling techniques. The resulting cognitive task analysis centres around four aspects of task load: the number of actions in a period, the ratio between knowledge and rule-based actions, lengthy uninterrupted actions, and momentary overloading. The method consists of three stages: (1) construction of a hierarchical task model, (2) time-line analysis and task load assessment, and (3) if necessary, adjustment of the task model. An application of the cognitive task analysis in railway traffic control showed its benefits over the 'old' task load analysis of the Netherlands Railways. It provided a provisional standard for traffic control jobs, conveyed two load risks - momentary overloading and underloading - and resulted in proposals to satisfy the standard and to diminish the two load risk.


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    Titel :

    Cognitive task analysis: harmonizing tasks to human capacities


    Weitere Titelangaben:

    Analyse von kognitiven Aufgaben: Angleichung der Aufgaben an das menschliche Leistungsvermögen


    Beteiligte:
    Neerincx, M.A. (Autor:in) / Griffioen, E. (Autor:in)

    Erschienen in:

    Ergonomics ; 39 , 4 ; 543-561


    Erscheinungsdatum :

    1996


    Format / Umfang :

    9 Seiten, 7 Bilder, 5 Tabellen, 24 Quellen




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch




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