Cognitive task analysis for virtual reality training

Abstract

Motivation -To examine if cognitive task analysis of expert machinists can be effective in developing a virtual reality based training system for CNC tool offsetting.Research approach -A cognitive task analysis of expert machinists was conducted which informed the development of a VR training system for CNC tool offsetting. Subsequently the effectiveness of the analysis was evaluated by conducting an experiment with 31 mechanical engineering students.Findings/Design -The virtual reality system demonstrated positive training transfer for the task of tool offsetting. The above indicates that the cognitive task analysis performed was effective in identifying a number of key skills of the tool offsetting task.Research limitations/Implications -The study does not prove the superiority of cognitive task analysis over other approaches for specifying virtual reality training systems, since it does not compare the cognitively tuned system with another one.Originality/Value -The present work provides evidence that skill transfer can be achieved even with low physical fidelity provided that the cognitive organization of a task is adequately mapped in the virtual reality system. Take away message -Further and beyond fidelity issues, cognitive task analysis can provide important input in specifying effective VR training systems.

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“…In manufacturing, and in particular for machining systems (microlevel), the fields of action include the relationship between employee and company, security, worker health, and comfort tasks. It also includes studies of the functionality of the results, client relationship, and interferences with the stakeholders; among others, the design of the workstation and of the work environment should be addressed, taking into consideration the following aspects: (1) human factor (measured by the performance [148]), (2) the decrease of the physical and cognitive work load [149], (3) the productivity improvement [150], (4) the motivation [151], and (5) the training and information at the workstation [152].…”

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Ανάπτυξη Και Αξιολόγηση Διαδραστικών Μοντέλων Εικονικής Πραγματικότητας Για Το Σχεδιασμό Ρομποτικών Συστημάτων Παραγωγής

“…Βέβαια, υπάρχουν αρκετοί περιορισμοί στη χρήση ΕΠε για την επιτυχή μεταφορά της γνώσης που αποκτήθηκε στον εικονικό κόσμο προς την πραγματικότητα. Σε εφαρμογές με καθήκοντα που χαρακτηρίζονται από σημαντικές αντιληπτικές ή/και κινητικές συνιστώσες, τα διαδραστικά ΕΠε πρέπει να παρουσιάζουν μεγάλο βαθμό ρεαλισμού και φυσικής πιστότητας προκειμένου να είναι αποτελεσματικά στη μεταφορά της γνώσης στον πραγματικό κόσμο (Nathanael, Vosniakos, & Mosialos, 2010) και (Crison et al, 2005).…”