A wide variety of use case templates supports different variants to link a use case with its associated requirements. Regardless of the linking, a reader must process the related information simultaneously to understand them. Linking variants are intended to cause a specific reading behavior in which a reader interrelates a use case and its associated requirements. Due to the effort to create and maintain links, we investigated the impact of different linking variants on the reading behavior in terms of visual effort and the intended way of interrelating both artifacts. We designed an eye tracking study about reading a use case and requirements. We conducted the study twice each with 15 subjects as a baseline experiment and as a repetition. The results of the baseline experiment, its repetition, and their joint analysis are consistent. All investigated linking variants cause comparable visual effort. In all cases, reading the single artifacts one after the other is the most frequently occurring behavior. Only links embedded in the fields of a use case description significantly increase the readers' efforts to interrelate both artifacts. None of the investigated linking variants impedes reading a use case and requirements. However, only the most detailed linking variant causes readers to process related information simultaneously.
翻译:各种各样的使用案例模板支持不同变量,将使用案例与其相关要求联系起来。无论连接关系如何,读者必须同时处理相关信息,以便理解这些信息。链接变量意在产生一种特定的阅读行为,使读者将使用案例及其相关要求相互联系。由于努力创建和维护链接,我们调查了不同链接变量对阅读行为的影响,从视觉努力和预期的两件艺术品相互联系的方式来看,我们设计了关于阅读使用案例和要求的眼视跟踪研究。我们进行了两次研究,每个研究有15个主题,作为基线试验和重复。基线实验的结果、重复和联合分析是一致的。所有调查过的链接变量都导致相似的视觉工作。在所有案例中,阅读单个文物时都是最经常发生的行为。只有使用案例描述领域的链接大大增加读者将两件工艺联系起来的努力。调查的连接变量中没有一个阻碍阅读使用案例和要求。然而,只有最详细的链接变量使得读者与进程相关信息同时进行。