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  • × author_ss:"Babu, R."
  1. Xie, I.; Babu, R.; Lee, H.S.; Wang, S.; Lee, T.H.: Orientation tactics and associated factors in the digital library environment : comparison between blind and sighted users (2021) 0.00 
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    Abstract
    This is the first study that compares types of orientation tactics that blind and sighted users applied in their initial interactions with a digital library (DL) and the associated factors. Multiple methods were employed for data collection: questionnaires, think-aloud protocols, and transaction logs. The paper identifies seven types of orientation tactics applied by the two groups of users. While sighted users focused on skimming DL content, blind users concentrated on exploring DL structure. Moreover, the authors discovered 13 types of system, user, and interaction factors that led to the use of orientation tactics. More system factors than user factors affect blind users' tactics in browsing DL structures. The findings of this study support the social model that the sight-centered design of DLs, rather than blind users' disability, prohibits them from effectively interacting with a DL. Simultaneously, the results reveal the limitation of existing interactive information retrieval models that do not take people with disabilities into consideration. DL design implications are discussed based on the identified factors.
    Source
    Journal of the Association for Information Science and Technology. 72(2021) no.8, S.995-1010
  2. Xie, I.; Babu, R.; Davey Castillo, M.; Han, H.: Identification of factors associated with blind users' help-seeking situations in interacting with digital libraries (2018) 0.00 
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    Abstract
    A sight-centered digital library (DL) design with complex structures and multimedia formats poses significant challenges for blind users. This study is the first attempt to investigate the top three help-seeking situations as well as associated factors in blind users' DL interactions. A mixed-method approach was adopted for this study. Multiple methods were applied to collect data from 30 blind subjects: questionnaires, presearch interviews, think aloud protocols, transaction logs, and postsearch interviews. The paper identifies the top three help-seeking situations, and associated factors in relation to user, system, task, and interaction. Moreover, different types of main-level factors were tested to investigate if they are correlated to each type of top situation, and qualitative data of sublevel factors offer insight into how these factors are associated with various situations. Without a clear understanding of these situations and factors, the objective of universal access to information in DLs cannot be achieved. DL design implications are further discussed with the goal of providing system design recommendations for reducing blind users' help-seeking situations.
    Source
    Journal of the Association for Information Science and Technology. 69(2018) no.4, S.514-527

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