The Information Service Evaluation (ISE) Model

Information services are an inherent part of our everyday life. Especially since ubiquitous cities are being developed all over the world their number is increasing even faster. They aim at facilitating the production of information and the access to the needed information and are supposed to make life easier. Until today many different evaluation models (among others, TAM, TAM 2, TAM 3, UTAUT and MATH) have been developed to measure the quality and acceptance of these services. Still, they only consider subareas of the whole concept that represents an information service. As a holistic and comprehensive approach, the ISE Model studies five dimensions that influence adoption, use, impact and diffusion of the information service: information service quality, information user, information acceptance, information environment and time. All these aspects have a great impact on the final grading and of the success (or failure) of the service. Our model combines approaches, which study subjective impressions of users (e.g., the perceived service quality), and user-independent, more objective approaches (e.g., the degree of gamification of a system). Furthermore, we adopt results of network economics, especially the "Success breeds success"-principle

Decision Support for the Usage of Mobile Information Service: A Context-Aware Service Selection Approach that Considers the Effects of Context Interdependencies

In mobile business, context information is utilised to select services mostly tailored to a user’s current situation and preferences. In existing context-aware service selection approaches, a service utility is determined by comparing its non-functional properties with current context information but without considering its integration in a service composition. This may cause suboptimal selection results, as context information and thus the determined utility of a certain service are usually dependent on its preceding and succeeding services. The latter we denote as context interdependencies. In this paper, we investigate how the effects of context interdependencies can be modelled for the context-aware service selection at planning time (i.e. before starting to accomplish a service composition). To develop this approach, we use the concept of states to model context information for the selection. In our evaluation, we find that our approach leads to superior results compared to current context-aware service selection approaches

Tendencias actuales en bibliotecas universitarias: orientaciones bibliográficas

UCM. BibliotecaFALSEsubmitte

Theories of Informetrics and Scholarly Communication

Scientometrics have become an essential element in the practice and evaluation of science and research, including both the evaluation of individuals and national assessment exercises. Yet, researchers and practitioners in this field have lacked clear theories to guide their work. As early as 1981, then doctoral student Blaise Cronin published "The need for a theory of citing" —a call to arms for the fledgling scientometric community to produce foundational theories upon which the work of the field could be based. More than three decades later, the time has come to reach out the field again and ask how they have responded to this call. This book compiles the foundational theories that guide informetrics and scholarly communication research. It is a much needed compilation by leading scholars in the field that gathers together the theories that guide our understanding of authorship, citing, and impact

Theories of Informetrics and Scholarly Communication

Scientometrics have become an essential element in the practice and evaluation of science and research, including both the evaluation of individuals and national assessment exercises. Yet, researchers and practitioners in this field have lacked clear theories to guide their work. As early as 1981, then doctoral student Blaise Cronin published The need for a theory of citing - a call to arms for the fledgling scientometric community to produce foundational theories upon which the work of the field could be based. More than three decades later, the time has come to reach out the field again and ask how they have responded to this call. This book compiles the foundational theories that guide informetrics and scholarly communication research. It is a much needed compilation by leading scholars in the field that gathers together the theories that guide our understanding of authorship, citing, and impact

Theories of Informetrics and Scholarly Communication

Scientometrics have become an essential element in the practice and evaluation of science and research, including both the evaluation of individuals and national assessment exercises. Yet, researchers and practitioners in this field have lacked clear theories to guide their work. As early as 1981, then doctoral student Blaise Cronin published "The need for a theory of citing" —a call to arms for the fledgling scientometric community to produce foundational theories upon which the work of the field could be based. More than three decades later, the time has come to reach out the field again and ask how they have responded to this call. This book compiles the foundational theories that guide informetrics and scholarly communication research. It is a much needed compilation by leading scholars in the field that gathers together the theories that guide our understanding of authorship, citing, and impact

10,000 Steps a Day for Health? User-based Evaluation of Wearable Activity Trackers

We present the results of a survey on perceived quality and service acceptance of activity trackers with a focus on country-based differences (US and Germany). The mutual influence of perceived service quality and service acceptance is being investigated. A new research focus based on activity trackers is the topic of medical health funds. Are users ready to share activity data with health insurance and expecting rewards in return? This study (N=803) supplements previous research which is mainly based on small sample sizes or qualitative results. Our research model is based on the Information Service Evaluation (ISE) model which includes common models such as TAM and UTAUT. Results show that aspects such as Fun, Gamification, Impact and Usefulness are very important regarding activity tracker use. Furthermore, user’s opinion on the support of medical healthcare funds and reducing medical fees is rather positive and significantly differentiates between US and German participants

Acceptance and Quality Perceptions of Social Network Services in Cultural Context: <i>Vkontakte</i> as a Case Study

In terms of network economics, as well as other information services, a social network service (SNS) has two chances–either it gains acceptance ("success breeds success") and will become standard or it slowly dies. Nowadays, <em>Facebook</em> is the standard in the social network world, however, not in Russia's and the neighboring countries' social network communities. Here, <em>Vkontakte</em>, the domestic SNS, dominates. What are the reasons for this success of the regional SNS and the failure of the global giant? We answer this research question while we empirically studied both SNSs, <em>Facebook</em> as well as <em>Vkontakte</em>, among Russian users. In the evaluation, based on the Information Service Evaluation (ISE) Model, we found out that <em>Vkontakte</em> is perceived as more useful than <em>Facebook</em>, is much more trustworthy, and more enjoyable to use. The cultural environment of the Russian community plays an important role as well