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Social networking services (SNSs) have become deeply ingrained into our daily life. However, it has often been reported that users experience negative feelings regarding SNS usage. This phenomenon presents challenges for SNS providers in retaining or increasing their customer base. This study focuses on SNS fatigue, a negative psychological state that can lead to discontinuance intention among SNS users. This study proposes two distinctive SNS-specific contexts and investigates how they alleviate the negative effect of SNS fatigue on user behavior.

Drawing upon the context-specific theorization perspective, a model involving moderation effects of the SNS-specific contexts on the relationship between user's SNS fatigue and discontinuance intention was proposed. The model was tested using survey data of active SNS users.

The results indicate that SNS fatigue leads to user discontinuance intention. However, the SNS-specific contexts, such as social interaction context and platform service context, negatively moderate the relationship between SNS fatigue and user discontinuance intention.

The findings of this study are expected to help SNS providers develop strategies to improve their services for effective user retention.

As social networking is becoming more popular, social software has achieved an important position in the internet business industry. For social software to be successful, it is crucial to understand how users form their continuous usage intentions toward social software. This paper aims to discuss these issues.

Drawing upon socio-technical and social cognitive perspectives, this study proposes a theory-based model that investigates the interaction effects between social (i.e. perceived user base and relationship commitment) and technical (i.e. perceived system quality) factors of social software, in addition to their direct effects on continuous usage intentions. To empirically validate the proposed research model, a structural equation modelling technique was used.

The results of our model test indicate that all relevant social and technical factors are significant determinants of continuous usage intention. Moreover relationship commitment exhibits a positive interaction effect with perceived system quality on continuous usage intention, while perceived user base does not.

Service designers or providers of social software should make an effort to nurture social relationships among users, expand users' social networks, and reinforce users' relationship commitment to their friends.

Given the lack of investigations into socio-technical interactions in prior social software studies, the theoretical perspectives and empirical findings of this study are useful to both academics and practitioners. The findings also raise new implications regarding the various types of interactions (e.g. enhancing or suppressing) between the social and technical factors around social software.

The purpose is to present a knowledge management model for R&d organizations and discuss how to employ it for their innovation. This paper first derives generic elements for effective KM implementation through literature reviews. Then, considering the elements, this paper develops an integrative KM model for enabling R&D innovation. Next, this paper analyzes the case of Samsung Advanced Institute of Technology (SAIT), which has performed KM‐based innovation activities on the basis of the model presented in this paper. Finally, this paper discusses the lessons and implications from SAIT’s knowledge management initiatives. To achieve KM‐based innovation successfully in an R&D organization, its generic characteristics should be considered essentially in designing KM activities. From the case analysis of SAIT KM which employs this perspective, the following critical success factors are found: KM measurements metrics to stimulate a strong relationship between KM activities and the organization’s competitiveness, knowledge templates to enable the consistent management of core knowledge, various information group activities to generate meaningful new ideas, and IT systems and rules to satisfy researchers’ individual aspiration for self development. The research limitations/implications are that to generalize the usefulness of the proposed model, more cases need to be analyzed. The practical implications are that the proposed R&D KM model and analyses on the real‐life KM case of SAIT may be employed as significant benchmarking information in other R&D organizations. This paper presents an integrative KM model considering the generic features of R&D organizations.

To present a knowledge management (KM) model for research and development organizations and discuss how to employ it for their innovation.

The paper derives generic elements for effective KM implementation through literature reviews, and then develops an integrative KM model for enabling R&D innovation, before analyzing the case of Samsung Advanced Institute of Technology (SAIT), which has used this model.

The shortening product life of high‐tech goods, brought about by an ever‐present need to keep ahead of the competition, has led to an ever‐greater reliance on the output from research and development teams.

The proposed R&D KM model and analysis of the case of SAIT may be employed as significant benchmarking information in other R&D organizations.

The World Wide Web has undergone a rapid transition from the originally static hypertext to an ubiquitous hypermedia system. Today, the Web is not only used as a basis for distributed applications (Web applications), moreover it serves as a generic architecture for autonomous applications and services. Many research work has been done regarding the modeling and engineering process of Web applications and various platforms, frameworks and development kits exist for the efficient implementation of such systems. Concerning the modeling process, many of the published concepts try to merge traditional hypermedia modeling with techniques from the software engineering domain. Unfortunately, those concepts which capture all facets of the Web’s architecture become rather bulky and are eventually not applicable for a model‐driven Web application development. Moreover, there is a need for frameworks which address both, the modeling process and the implementation task and allow a model driven, semi‐automatic engineering process using CASE tools. This paper outlines the DaVinci Web Engineering Framework which supports the modeling as well as the semi‐automated implementation of Web applications. The DaVinci Architectural Layer specifies a persistent, hierarchical GUI model and a generic interaction scheme. This allows the elimination of the hypermedia paradigm, which turned out to be rather practical when building Web applications.