Wonchan Choi

Web credibility assessment: Conceptualization, operationalization, variability, and models

This article reviews theoretical and empirical studies on information credibility, with particular questions as to how scholars have conceptualized credibility, which is known as a multifaceted concept with underlying dimensions; how credibility has been operationalized and measured in empirical studies, especially in the web context; what are the important user characteristics that contribute to the variability of web credibility assessment; and how the process of web credibility assessment has been theorized. An agenda for future research on information credibility is also discussed.

mHealth technologies for osteoarthritis self-management and treatment: A systematic review:

Osteoarthritis is a common chronic disease that can be better treated with the help of self-management interventions. Mobile health (mHealth) technologies are becoming a popular means to deliver such interventions. We reviewed the current state of research and development of mHealth technologies for osteoarthritis self-management to determine gaps future research could address. We conducted a systematic review of English articles and a survey of apps available in the marketplace as of 2016. Among 117 unique articles identified, 25 articles that met our inclusion criteria were reviewed in-depth. The app search identified 23 relevant apps for osteoarthritis self-management. Through the synthesis of three research themes (osteoarthritis assessment tools, osteoarthritis measurement tools, and osteoarthritis motion monitoring tools) that emerged from the current knowledge base, we provide a design framework to guide the development of more comprehensive osteoarthritis mHealth apps that facilitate self-management, decision support, and shared decision-making.

Trends in Integrated Electronic Resource Management in Academic Libraries

ABSTRACT The explosion in the number of electronic resources has necessi tated that academic libraries rethink the way they manage the life cycle of their electronic resource s within the structure and processes of their library. With this momentum, led by the Digital Library F ederations Electronic Resources Management Initiative, specifications and tools for electronic resources h as been devised. This study surveys the terrain of electronic resource management as viewed through the current development of ERM Systems and their adaptations into major academic libraries in the United States. For this, we tried to report how such tools are implemented with various additional modules. The pote ntial of the module to integrate the management of its electronic resources into the new process has been suggested, as well.키워드: 장서개발, 전자자원, 전자자원관리, 대학도서관Collection Development, Electronic Resources, Electronic Resour ce Management, Academic Library ****** 이 논문은 부산대학교 자유과제 학술연구비 (2년)에 의하여 연구되었음.부산대학교 문헌정보학과 부교수 (dchang@pusan.ac.kr)부산대학교 문헌정보학과 조교 (hwoarang@pusan.ac.kr)논문접수일자: 2008년 11월 15일 최초심사일자 : 2008년 11월 27일 게재확정일자 : 2008년 12월 12일

Effective Use of User Interface and User Experience in an mHealth Application

The effect of user interface (UI) design decisions on system usability has been discussed in information system literature. These discussions evolved into investigating the effectiveness of UI and how it affects a system user’s performance, as well as his or her perception of the system as a whole. This paper investigates the role of UI design on facilitating effective use in the context of mobile applications. Based on the Effective Use Theory, we test four different UIs developed for frequent data input tasks in a mobile platform using a controlled experiment and a follow-up survey. Our findings indicate that UI design in terms of touch technique (tap vs. slide) and target direction (vertical vs. horizontal) has a significant impact on the task completion time, as well as the app UIs’ perceived usability and likability. We discuss both theoretical and empirical implications of the results and suggest future research directions.

The Sonzogno digital library project

This poster reports on a work-in progress project of building a digital library for metadata records of books published by Sonzogno between 1800 and 1943. Metadata records from seven major libraries that have Sonzogno collections were harvested and used for building a unified collection for this project. Omeka, open-source software for building digital libraries, was used to host, manage, and provide the public with access to the collection. Currently, a sample set of the metadata of books published in 1885 is available from the digital library (http://sonzogno.cci.fsu.edu/). This poster reports on the current status of the project, explaining the process and challenges associated with building a digital library of the metadata collection (metadata harvesting and crosswalk) using Omeka.

Difference in citation rates by subject areas of LIS in Korea

Citation analysis, in addition to peer review, is one of the popular methods to assess faculty research performance. In some disciplines, the validity of citation counts for evaluating research has been proven by many studies. However, it should be used cautiously when different disciplines are concerned, because citation practices may vary across disciplines. Although there have been studies that have examined the different citation practices across disciplines, relatively little research has investigated the citation rates of subject areas within a single discipline. This study explores the citation rates of subject areas in library and information science (LIS) in Korea. The preliminary results of this study will provide the rationale for further work, analyzing the causes of different citation patterns in a discipline. Ultimately, the study could provide useful implications for understanding and using the citation counts in assessing research performance.

Using mHealth App to Support Treatment Decision-Making for Knee Arthritis: Patient Perspective

Introduction: Mobile health (mHealth) technology can be used to integrate into medical decisionmaking for patients with advanced knee arthritis. We explored patient preferences on content and design of a mobile health app to facilitate daily symptom capture and summary feedback reporting, in order to inform treatment decisions, including use of total knee replacement surgery (TKR). Methods: Patient focus groups were conducted to gather requirements for mHealth app development and to refine the design and content of the app. Clinician (physical therapist, surgeon) interviews were conducted to understand clinician expectations from the summary trend report generated by the app. Results: Sixteen patients attended focus groups with an average age of 67 and 63% female, and three clinicians participated in clinician interviews. The preliminary findings revealed that the patients preferred easy tap user interfaces to multitap or slider methods, and vertical question layout to horizontal orientation. Patients liked to be engaged by progress feedback reports and educational tips. Both patients and clinicians found a trended outcome summary report helpful which provides more precise details on whether and how the symptoms are changing over time. Discussion: User input can inform the design and implementation of mHealth technology to meet patient needs for their treatment decisions. Patient priorities must be considered through patient-centered app design.

Looking Beyond the Numbers: Bibliometric Approach to Analysis of LIS Research in Korea

Bibliometric analysis for research performance evaluation can generate erroneous assessments for various reasons. Application of the same evaluation metric to different domains, for instance, can produce unfair evaluation results, while analysis based on incomplete data can lead to incorrect conclusions. This study examines bibliometric data of library and information science (LIS) research in Korea to investigate whether research performance should be evaluated in a uniform manner in multi-disciplinary fields such as LIS and how data incompleteness can affect the bibliometric assessment outcomes. The initial analysis of our study data, which consisted of 4,350 citations to 1,986 domestic papers published between 2001 and 2010 by 163 LIS faculty members in Korea, showed an anomalous citation pattern caused by data incompleteness, which was addressed via data projection based on past citation trends. The subsequent analysis of augmented study data revealed ample evidence of bibliometric pattern differences across subject areas. In addition to highlighting the need for a subject-specific assessment of research performance, the study demonstrated the importance of rigorous analysis and careful interpretation of bibliometric data by identifying and compensating for deficiencies in the data source, examining per capita as well as overall statistics, and considering various facets of research in order to interpret what the numbers reflect rather than merely taking them at face value as quantitative measures of research performance.

College Students' Value Structure of Choosing and Using Mobile Health/Wellness Applications: Preliminary Findings

This work-in-progress poster reports on the preliminary findings regarding college students’ value structure of how to choose and utilize mobile health/wellness applications. We have conducted surveys and follow-up interviews with college students who have been using mobile health/wellness applications. In this poster, we analyzed the survey data from sixteen participants and the interview data from five participants (three females and two males). The analysis showed that the most important purposes of using mobile health/wellness applications for college students were recording and managing personal health information/records and keeping up with their fitness plans. For selection criteria, easy to navigate, easy to use, quality of content, customizability, and ratings from other users seemed to play the most important role in college students’ choices of certain mobile applications among alternatives.

Guidelines for older-adult-friendly online tutorial for Facebook: content, design, and training principles

This poster reports preliminary findings from a research project, which attempts to suggest guidelines for developing an older-adult-friendly online tutorial for Facebook. An existing online tutorial for Facebook, Facebook 101, was analyzed to provide a more practical discussion. Weaknesses and improvement points of the tutorial were identified based on the literature regarding principles of design and training for older adults (OAs). Moreover, hierarchical task analyses (HTAs) were conducted to re-design lessons (i.e., content of the tutorial) for popular Facebook activities by OAs. This poster includes a demo version of the OA-friendly online tutorial for Facebook by reflecting the findings and experiences from the study. This paper also outlines future research directions.