Giacomo Querini, Luca Zamboni
ERGONOMIC EVALUATION OF HOUSEHOLD APPLIANCES
Supervisor: Luciano Gamberini
Co-Supervisor: Anna Spagnolli
Graduate student: Giacomo Querini, Luca Zamboni
Before the creation of the sequence of tasks, the research team analyzed all the similar fridge-freezers on sale and all the similar washing machine on sale, in order to exploit the main aspect of this category of appliances and understand the most frequent actions that a common user made during the daily interaction. After this analysis, all the possible actions and all the possible interactions that a user could made were categorized, and for each of them were projected a specific category of tasks. This methodology was first applied on a fridge freezer (Rex-Electrolux RNB 38351 Y) and then applied on another fridge freezer (AEG-Electrolux Santo 75438), thus a comparison between the common aspects of these household appliances, is possible. Given their technical differences between these two fridges, some tasks were readapted or removed from the list of original sequence of task, though the main areas of interest were unchanged during the comparison. The same methodology was also used for the study of a washing machine (Rex-Electrolux RWN 14911) and some area of investigation (e.g. the interaction with the display) were in common between these studies (fridge-freezers vs. washing machine) but, obviously, were studied through different kind of tasks.
It’s also important, to investigate the level of users’ satisfaction during the interaction with the appliance. This level of satisfaction was measured with dicotomic answers given by the participants at the end of all the task sequence. Users have been divided in three experimental conditions based on the different permitted use of the user manual. Gender was balanced when composing users samples. This research was supported by Electrolux with a postgraduated student grant.