Survival of Open-Source Projects: A Population Ecology Perspective

In the last few years, open source (OS) software development has become a viable alternative to commercial software. OS developers form virtual teams and the goal of this study is to examine the viability of the projects as organizational forms. We draw from the population ecology literature and propose that such factors as project reliability, size, age, and niche focus will be related to the survival of OS projects. Specifically, the purpose of this research is to test the applicability of some basic theorems of population ecology to open source projects. In this research we focus on short-term survival of OS projects. If the population ecology paradigm is useful, we can expand our analyses. The study uses archival project data available at SourceForge to test the theoretical propositions

An Empirical Analysis of the Business Value of Open Source Infrastructure Technologies

Organizations are increasingly interested in exploring Free/Libre Open Source Software (FLOSS) based technologies as viable alternatives to proprietary or commercial solutions, but research on the business value of such technologies is lacking. In this paper, we contribute to this important, yet understudied, topic by examining the antecedents of the business value of open source infrastructure technologies. The paper puts forward a new model for explicating the organizational benefits of these technologies. Our findings suggest that in order to realize benefits from open source infrastructure technologies, organizations should have the human and technological capacities to absorb and utilize them as well as the ability to establish, maintain, and leverage ties with the technologies’ communities of developers and users. The paper focuses on open source databases (specifically, MySQL) as an instance of open source infrastructure technology. A PLS analysis of 149 responses from organizations that have implemented MySQL revealed that absorptive capacity for the database, ties with the technology’s user/developer community-of-practice, and an open source IT infrastructure that facilitates MySQL utilization explain about 20 per cent of the business value of the open source technology. These findings should help organizations realize the numerous potential benefits of open source technologies

Loyalty, Ideology, and Identification: An Empirical Study of the Attitudes and Behaviors of Passive Users of Open Source Software

Extant research on open source software (OSS) has primarily focused on software developers and active users but has paid limited attention to the less visible “passive” users who form the silent majority of OSS communities. Passive users play a critical role in the adoption and diffusion of OSS, and we need more research to understand their behaviors and motivations. We address this gap by drawing on the sociological theory of community markers. The three community markers in the context of OSS are loyalty, ideology, and identification. We also draw on marketing literature to propose four contributory behaviors of passive users of OSS that we theorize to be impacted by the community markers: user brand-extension, word-of-mouth, endorsement, and community involvement. We further classify passive users’ contributory behaviors according to the difficulty of their enactment and examine the differential influence of the OSS community markers. Partial-least squares (PLS) analyses of data obtained through a survey of passive users of an OSS product provide support for the majority of the hypotheses

How Loyal Are Your Users? Loyalty and Loyalty Outcome Behaviors: An Empirical Study in the Free/Libre Open Source Software Context

The contemporary IS industry faces a challenge that is similar to brand proliferation in consumer products, that of identifying and nurturing loyal IS users. Also, there has been a growing interest in potential benefits that can be derived from loyal users\u27 contributions to IS, such as word of mouth (WOM) marketing, non-verbal endorsement, resistance to counter-persuasion, and brand extension behaviors. To address the increasing competition and the growing interest in user contributions in the IS industry, this study proposes a conceptual model to examine the relationships between loyalty and habit and their antecedents (satisfaction and investment), and the relationships between loyalty and habit and their outcome behaviors (WOM, non-verbal endorsement, resistance to counter-persuasion, and brand extension) in the presence of a moderating factor (s). The proposed model will be empirically tested in the Free/Libre Open Source Software context as it is one of the driving forces for the increasing competition in the consumer software market and as Free/Libre Open Source Software ideology may potentially moderate the relationship between loyalty and its outcome behaviors

Why Should I Provide Social Support? A Social Capital Perspective of Individual Helping Behavior in Healthcare Virtual Support Communities

The phenomenon of online social support has been studied for years. However, little is known about the factors that drive individual online helping behavior. While the Information systems literature provides rich insights into the determinants of online social support, the emphasis has been exclusively on the provision of informational help. By contending the need to expand our investigation to different types of support, this paper studies individual provisions of both informational and emotional social support in healthcare virtual support communities (HVSCs). Drawing on social capital theory, the structural, relational, and cognitive dimensions of social capital are conceptualized as the social support determinants. The results show that the social capital dimensions can be both facilitators and inhibitors of the two types of social support. This study can contribute not only to the literature on HVSCs, but also to studies of other types of virtual communities such as electronic networks of practice

Cultural Dimensions as Moderators of the UTAUT Model: a Research Proposal in a Healthcare Context

While a variety of information technology (IT) acceptance and use models have been extensively examined and validated in numerous contexts, most studies have been conducted in western cultures, and thus not much is known about the probable moderating role of culture on the relationships between the constructs in those models. To fill this gap in the literature, we propose to empirically investigate the probable moderating roles of national cultural differences on the relationships between the constructs in the Unified Theory of Acceptance and Use of Technology (UTAUT): a model that consolidates the most prominent eight previous IT acceptance and use models. Hofstede’s five national cultural dimensions that provide a framework for national cultural differences are employed as the moderators. A self-administered survey questionnaire will be sent to healthcare practitioners in ten major healthcare organizations, five each from Taiwan and the U.S., to solicit their responses regarding their acceptance and use of Clinical Decision Support Systems (CDSSs). The findings from this proposed research are expected to generate both theoretical and practical implications

Sustainability of Free/Libre Open Source Projects: A Longitudinal Study

This paper examines the factors that influence the long-term sustainability of FLOSS projects. A model of project sustainability based on organizational ecology is developed and tested empirically. Data about activity and contribution patterns over the course of five years for 2,772 projects registered with SourceForge is analyzed. Our results suggest that the size of the project’s development base, project age and the size of niche occupied by the project are positively related to the project’s ability to attract user and/or developer resources. The ability to attract resources is an indicator of the perceived project legitimacy, which in turn is a strong predictor of the project’s future sustainability. Thus a project’s ability to attract developer and user resources is shown to play a mediating role between the demographic (size and age) and ecological (niche) characteristics of the project and its future sustainability. Our results support the applicability of tenets of organizational ecology related to the liability of smallness, the liability of newness, and population characteristics (niche size) to the FLOSS development environment. The implications of the results for future research and practice are discussed

Not Just for Support: Companionship Activities in Healthcare Virtual Support Communities

The phenomenon of social support―aid and assistance exchanged through social relationships and interpersonal transactions―has been studied extensively for decades. In the context of healthcare virtual support communities, researchers have focused on exploring community members’ support behavior and its effects on individuals’ health outcomes. This emphasis, however, has led to the neglect of another type of social interaction that also promotes individual health―companionship activities. We argue that in order to gain a deeper insight into the online support phenomenon, the consideration of companionship activities, in addition to social support exchange, is necessary. To bridge this gap in the literature, this article attempts to contrast community members’ support behavior and companionship activities in two large healthcare virtual support communities―one for patients with breast cancer and the other for patients with prostate cancer. Based on the identification of the two types of social activities from the two cancer support communities, the relationship between individuals’ participation in these activities, and gender differences in their activity engagement are also hypothesized and tested. Our goal is to advance the understanding of online socio-behavioral dynamics of virtual support communities. We also wish to provide insights into the design of such communities and the delivery of patient-focused healthcare interventions

HI 21cm imaging of a nearby Damped Lyman-alpha system

We present Giant Metrewave Radio Telescope (GMRT) HI 21cm emission images of the z=0.009 damped Lyman-alpha (DLA) absorber towards the QSO HS 1543+5921. The DLA has been earlier identified as a low surface brightness galaxy SBS 1543+593 at an impact parameter of ~ 400 pc to the QSO line of sight. The extremely low redshift of the absorber allows us to make spatially resolved images of the 21cm emission; besides the HI mass, this also enables us to determine the velocity field of the galaxy and, hence, to estimate its dynamical mass. We obtain a total HI mass of ~ 1.4x10^9 Msun, considerably smaller than the value of M*(HI) determined from blind 21cm emission surveys. This continues the trend of low HI mass in all low redshift DLAs for which HI emission observations have been attempted. We also find that the QSO lies behind a region of low local HI column density in the foreground galaxy. This is interesting in view of suggestions that DLA samples are biased against high HI column density systems. The dynamical mass of the galaxy is found to be Mdyn ~ 5x10^9 Msun.Comment: Accepted for publication in A&

Very metal-poor galaxies: ionized gas kinematics in nine objects

The study of ionized gas morphology and kinematics in nine eXtremely Metal-Deficient (XMD) galaxies with the scanning Fabry-Perot interferometer on the SAO 6-m telescope is presented. Some of these very rare objects (with currently known range of O/H of 7.12 < 12+log(O/H) < 7.65, or Zo/35 < Z < Zo/10) are believed to be the best proxies of `young' low-mass galaxies in the high-redshift Universe. One of the main goals of this study is to look for possible evidence of star formation (SF) activity induced by external perturbations. Recent results from HI mapping of a small subsample of XMD star-forming galaxies provided confident evidence for the important role of interaction-induced SF. Our observations provide complementary or new information that the great majority of the studied XMD dwarfs have strongly disturbed gas morphology and kinematics or the presence of detached components. We approximate the observed velocity fields by simple models of a rotating tilted thin disc, which allow us the robust detection of non-circular gas motions. These data, in turn, indicate the important role of current/recent interactions and mergers in the observed enhanced star formation. As a by-product of our observations, we obtained data for two LSB dwarf galaxies: Anon J012544+075957 that is a companion of the merger system UGC 993, and SAO 0822+3545 which shows off-centre, asymmetric, low SFR star-forming regions, likely induced by the interaction with the companion XMD dwarf HS 0822+3542.Comment: Accepted to MNRAS, 20 pages, 3 tables, 7 figure