Leveraging legacy codes to distributed problem solving environments: A web service approach

This paper describes techniques used to leverage high performance legacy codes as CORBA components to a distributed problem solving environment. It first briefly introduces the software architecture adopted by the environment. Then it presents a CORBA oriented wrapper generator (COWG) which can be used to automatically wrap high performance legacy codes as CORBA components. Two legacy codes have been wrapped with COWG. One is an MPI-based molecular dynamic simulation (MDS) code, the other is a finite element based computational fluid dynamics (CFD) code for simulating incompressible Navier-Stokes flows. Performance comparisons between runs of the MDS CORBA component and the original MDS legacy code on a cluster of workstations and on a parallel computer are also presented. Wrapped as CORBA components, these legacy codes can be reused in a distributed computing environment. The first case shows that high performance can be maintained with the wrapped MDS component. The second case shows that a Web user can submit a task to the wrapped CFD component through a Web page without knowing the exact implementation of the component. In this way, a user’s desktop computing environment can be extended to a high performance computing environment using a cluster of workstations or a parallel computer

The unified theory of acceptance and use of technology (UTAUT): a literature review

YesPurpose – The purpose of this paper is to perform a systematic review of articles that have used the unified theory of acceptance and use of technology (UTAUT). Design/methodology/approach – The results produced in this research are based on the literature analysis of 174 existing articles on the UTAUT model. This has been performed by collecting data including demographic details, methodological details, limitations, and significance of relationships between the constructs from the available articles based on the UTAUT. Findings – The findings indicated that general purpose systems and specialized business systems were examined in the majority of the articles using the UTAUT. The analysis also indicated that crosssectional approach, survey methods, and structural equation modelling analysis techniques were the most explored research methodologies whereas SPSS was found to be the largely used analysis tools. Moreover, the weight analysis of independent variables indicates that variables such as performance expectancy and behavioural intention qualified for the best predictor category. Moreover, the analysis also suggested that single subject or biased sample as the most explored limitation across all studies. Research limitations/implications – The search activities were centered on occurrences of keywords to avoid tracing a large number of publications where these keywords might have been used as casual words in the main text. However, we acknowledge that there may be a number of studies, which lack keywords in the title, but still focus upon UTAUT in some form. Originality/value – This is the first research of its type which has extensively examined the literature on the UTAUT and provided the researchers with the accumulative knowledge about the model

Examining Factors Affecting Adoption Of Online Public Grievance Redressal System: A Case Of India

The purpose of this paper is to examine the factors influencing the adoption of the online public grievance redressal system (OPGRS) in the Indian context. This e-government initiative is based on the government’s long term strategic policy that aims to reform and overhaul the Indian bureaucracy. The model developed is based on the unified theory of acceptance and use of technology (UTAUT) and includes the constructs including performance expectancy, effort expectancy, social influence, facilitating conditions, self-efficacy, and behavioral intention. The empirical outcomes provided the positive significant relationships for all 11 hypotheses established using six constructs. The empirical evidence and discussion presented in the study can help the Indian government to improve upon and fully utilize the potential of OPGRS as a useful tool for transparent and corruption free country. The research also provides its limitations and future research directions, and implications for theory and practice at the end

E-Government Adoption Research: An Analysis of the Employee Perspective

The study of electronic government is a comparatively recent development, and to date, relatively little is known about levels of maturity and contemporary trends and issues. The aim of this paper is to provide a review of current literature pertaining to electronic government research in order to observe basic trends and highlight promising lines of inquiry. Of an initial search resulting in 448 articles published between 2000-2011, 134 were found to discuss adoption of e-government services from an employee’s perspective and included in our study. Results suggest that there is currently a relative lack of theoretical development and rigor in the area, and although many aspects such as job relevance, security, perceived benefits, anxiety, and perceived quality are clearly significant as far as employee’s adoption is concerned, they have not been investigated to their potential, and there remains much opportunity for researchers to shape and develop the field

Examining Role of Usefulness, Ease of Use and Social Influence on Jordanian Citizen’s Intention to Adopt E-Government

Electronic Government (eGov) offers several benefits to citizens (particularly in the context of developing countries) in terms of convenience, anytime, anywhere access to government services, transparency, reduced corruption and reduced bureaucracy. Despite it offering such benefits, citizens of many countries are reluctant in adopting eGov systems. This study developed and tested an extended technology acceptance model (TAM) that integrates social influence with perceived usefulness and perceived ease of use in order to investigate factors determining Jordanian citizens’ intention to adopt eGov. The model was empirically tested employing data collected from a survey of Jordanian citizens. A regression analysis was conducted to evaluate the influence of three independent constructs on behavioural intention to adopt eGov. Results of this research indicated that all three independent constructs significantly affected Jordanian citizens\u27 behavioural intention to adopt eGov. The findings presented in this submission are likely to be useful for the Jordanian government in terms of developing user friendly system and encouraging citizens to promote widespread adoption. A concluding section presents key conclusions, limitations and future research directions arising from this research

Measuring Intention To Use And Satisfaction With Electronic District System: Validation Of A Combined Model Of IS Success

The purpose of this paper is to examine the intentions to use and satisfaction with electronic District system from the perspective of largely computer and Internet literate citizens from the state of Bihar in India. Measuring success of the system becomes significant also because this system was at the pilot-testing phase at the time of gathering data for it. The study used a combined IS success model to measure the success of this system. The proposed model contains constructs including information quality, system quality, perceived usefulness, intention to use, and user satisfaction. The empirical outcomes positive and significant relationships between all seven hypotheses formulated between five constructs. The empirical findings and discussion presented in this research might help the state government of Bihar to fully utilise the potential of the e-District system as an efficient tool to curb corruption and help government toward minimising it

Gender, Age, and Frequency of Internet Use as Moderators of Citizens’ Adoption of Electronic Government

This paper proposes a model of citizen acceptance of e-government systems by extending UTAUT with two additional constructs (Anxiety and Attitude), and includes three moderators; gender, age, and frequency of Internet use. The model was tested with primary data gathered within the context of use of an e-government system in India. The model received good empirical support, explaining 53.7% of variance in citizen intention to make use of e-government systems. The paper contributes to e-government services research by highlighting key influencing factors (particularly the importance of attitude), identified a number of significant differences based on the use of the moderators, and identified a number of aspects appropriate for government attention and future work