OBSERVATIONAL DATA ON PRACTICAL EXPERIENCE AND CONDITIONS OF USE OF WRITTEN INSTRUCTIONS

摘要

This article presents a study investigating how people deal with procedural documents when using a new domestic appliance. An observational study was carried out in a quasi-experimental setting in order to outline the behavior of users encountering and using an appliance for the first time. The purpose of this observation was to identify two kinds of factors: on the one hand, factors inciting the use of procedural documents accompanying appliances, and on the other hand, design features facilitating the use of these documents when looking for specific information. User behavior and strategies were categorized using two kinds of indicators: 1) the number of times the documents were examined prior to contact with the appliance and/or while carrying out the prescribed tasks; and 2) the total time required to locate information in three different kinds of documents: Text only, Picture only, Text + Picture. Results show that 16 participants out of 30 spontaneously used the procedural documents before starting to use the appliance. However, during the session, 27 participants consulted the documents at least once. This consultation was determined by the task to carry out and the complexity level of the task. Otherwise, results show that time taken to locate information was shortest when instructions were displayed in text-and-picture format.