视障用户如何使用数字图书馆:困难、因应策略及其效果——基于对164名视障参与者的实验

How Visually Impaired Users Use Digital Libraries:Difficulties,Coping Strategies and Their Effectiveness——Based on an Experiment with 164 Visually Impaired Participants

基于164名视障群体的实验,通过问卷调查法、实验分析法、层次分析法等研究方法,提取了视障用户使用数字图书馆时面临的困难及其因应行为,并实证检验了因应策略的效果。实验发现,获取信息的困难、认知信息的困难、搜索信息的困难、获得帮助的困难、对多种程序和数字系统结构的困惑,是视障用户在使用数字图书馆时面临的五种主要困难,他们会相应尝试采取检查当前位置、检查搜索结果、检查页面、检查系统反馈、忽略多余的信息、探索无障碍替代方案等方法来摆脱困境。但是无论何种策略,其效果都欠佳。在此基础上,本文提出数字图书馆建设中需要注重信息的多模态表现等对策,以期为视障用户提供更为精准的数字服务。图1。表6。参考文献49。

Based on an experiment with 164 visually impaired groups,the difficulties faced by visually impaired users in using digital libraries and their coping behaviors were extracted through questionnaire,experimental analysis and hierarchical analysis,and the effectiveness of the coping strategies were empirically tested.The study found that difficulties in accessing information,difficulties in perceiving information,difficulties in searching for information,difficulties in getting help,and confusion about the structure of multiple programmes and digital systems were the five main difficulties faced by visually impaired users in using digital libraries.They will try to get out of the way by checking the current location,checking search results,checking pages,checking system feedback,ignoring redundant information,exploring accessibility alternatives,etc.However,whatever the strategies are,they are not so effective.On this basis,countermeasures such as the need to focus on the multimodal representation of information in the construction of digital libraries are proposed in order to provide more accurate digital services for visually impaired users in a targeted manner.1 fig.6 tabs.49 refs.