任务类型和导航对层次型超文本信息搜索的影响  

Effects of Task Type and Navigation on Information Searching Performance in Hierarchical Hypertext

作　　者：任衍具[1] 张智君[1] 唐日新[1] 

机构地区：[1]浙江大学心理与行为科学系,浙江杭州310028

出　　处：《人类工效学》2004年第3期7-9,共3页Chinese Journal of Ergonomics

基　　金：浙江省自然科学基金资助项目(301076)

摘　　要：考察任务类型和导航对层次型超文本信息搜索绩效的交互效应。采用2(特定任务,关系任务)×2(有导航图,无导航图)被试者内设计,以搜索时间、正确率、平均总节点数、平均重复节点数和主观满意感为指标。结果表明:(1)对关系任务的信息搜索绩效显著低于特定任务;(2)导航图能降低信息搜索的迷路程度;(3)提供导航更有利于关系任务的信息搜索。The interaction effect of task type and navigation on information searching performance in hierarchical hypertext was explored in the present study.The 2(task type:specific vs relational)×2(navigation:with map vs without map) within-subject factorial design was employed.The mean searching time,accuracy,total number of nodes visited and repeatedly revisited,and rating of subjective satisfaction were used as indices.It was found that searching performance in relational task was significantly lower than in specific task and that navigation could reduce users'degree of lostness,especially in relational task.

关 键 词：信息搜索 任务类型 层次型超文本 路程 导航 搜索时间 设计 绩效 交互效应 

分 类 号：TP311.13[自动化与计算机技术—计算机软件与理论] B849[自动化与计算机技术—计算机科学与技术]