A new model to support the personalised management of a quality e-commerce service

The paper presents an aiding model to support the management of a high quality e-commerce service. The approach focuses on the service quality aspects related to customer relationship management (CRM). Knowing the individual characteristics of a customer, it is possible to supply a personalised and high quality service. A segmentation model, based on the "relationship evolution" between users and Web site, is developed. The method permits the provision of a specific service management for each user segment. Finally, some preliminary experimental results for a sport-clothing industry application are described

Developing and Validating an Instrument for Measuring User-Perceived Web Quality

Many of the instruments to measure information and system quality were developed in the context of mainframe and PC-based technologies of yesteryears. With the proliferation of the Internet and World Wide Web applications, users are increasingly interfacing and interacting with web-based applications. It is, therefore, important to develop new instruments and scales, which are directly targeted to these new interfaces and applications. In this article, we report on the development of an instrument that captures key characteristics of web site quality from the user‘s perspective. The 25-item instrument measures four dimensions of web quality: specific content, content quality, appearance and technical adequacy. While improvements are possible, the instrument exhibits excellent psychometric properties. The instrument would be useful to organizations and web designers as it provides an aggregate measure of web quality, and to researchers in related web research

Content vs metrics: Using language modeling to evaluate in-line source code comments for Python

Undergraduate thesis submitted to the Department of Computer Science, Ashesi University, in partial fulfillment of Bachelor of Science degree in / Computer Science, May 2020Documentation is vital to the understanding, maintenance and, ultimately, survival of software projects . And yet, a lot of software projects either lack documentation, or are very poorly documented. This results in a gradual decline in the quality of the code and may require complete overhauls in extreme cases. It is therefore important to evaluate documentation to ensure that it conveys clear and meaningful ideas. While existing methods of evaluating documentation are metrics based and look at the structure of documentation examples, this paper explores the possibility of evaluating documentation by assessing its contents. There is, however, a lack of an existing corpus of documentation for natural language processing tasks. A corpus of Python function/method comments is assembled, and a language modeling experiment is performed on them. The results of this experiment are mixed. While they show that it is possible to evaluate documentation by looking at its content as opposed to structure, they also show that this approach may not necessarily be more accurate, with lower quality comment examples having higher probability than those of higher quality.Ashesi Universit

Investigating Pedagogical Value of Wiki Technology

This exploratory study investigates the potential of Wiki technology as a tool for teaching and learning. Wikis are a component of Web 2.0 technology tools that provide collaborative features and active learning opportunities in a web-based environment. This research study sought to empirically determine the pedagogical value of using Wiki technology in university courses. An instrument comprised of four constructs: Learning/Pedagogy, Motivation, Group Interaction, and Technology was developed and tested using reliability and validity as being capable of assessing student perceptions of value of Wiki technology. Hypotheses were tested to determine if factors such as age, gender, work experience, and web development experience influence students’ satisfaction with Wiki technology. Best practices for using Wikis in the classroom, student concerns, and lessons learned by the researchers when implementing Wikis for instruction are discussed in this study. The authors hope that understanding the use of Wiki technology will provide practitioners and researchers an opportunity to develop pedagogically effective Wiki learning environments

Factors affecting the success of management support systems: analysis and meta-analysis

This paper gives a traditional review and meta-analysis of the literature on management support systems (MSS) success. Based on an extensive survey ofpublished research in the problem domain factors, affecting MSS success as presented. Both a theoretical examination and an overview of empiricalresearch of each factor are provided. Correlations above r = 0.3 are found for user maturity of IS department, flexibility, realism of user expectations quality of user documentation, formal development, user training, management support, and user expectations. Thus far, user involvement is the mostwidely investigated variable in empirical research. In this paper, the author makes an attempt to distinguish objective user involvement from userinvolvement as experienced by the user. Effect sizes for the latter variable appeared to be larger than findings for the first. Indicating that a'feeling' of user involvement is more important than user involvement itself. A further analysis of the data shows effect sizes for laboratory studiesto be lower, and more homogeneous than findings of field research. Furthermore, correlation between the contingency factors and user informationsatisfaction appeared to be higher than findings which used usage as the independent variable. The relation between the contingency factors and usageappears to be diminishing over time. This may be caused by the fact that MSS less often fall below the level at which managers cease to use the systems

A Holistic Usability Framework For Distributed Simulation Systems

This dissertation develops a holistic usability framework for distributed simulation systems (DSSs). The framework is developed considering relevant research in human-computer interaction, computer science, technical writing, engineering, management, and psychology. The methodology used consists of three steps: (1) framework development, (2) surveys of users to validate and refine the framework, and to determine attribute weights, and (3) application of the framework to two real-world systems. The concept of a holistic usability framework for DSSs arose during a project to improve the usability of the Virtual Test Bed, a prototypical DSS, and the framework is partly a result of that project. In addition, DSSs at Ames Research Center were studied for additional insights. The framework has six dimensions: end user needs, end user interface(s), programming, installation, training, and documentation. The categories of participants in this study include managers, researchers, programmers, end users, trainers, and trainees. The first survey was used to obtain qualitative and quantitative data to validate and refine the framework. Attributes that failed the validation test were dropped from the framework. A second survey was used to obtain attribute weights. The refined framework was used to evaluate two existing DSSs, measuring their holistic usabilities. Ensuring that the needs of the variety of types of users who interact with the system during design, development, and use are met is important to launch a successful system. Adequate consideration of system usability along the several dimensions in the framework will not only ensure system success but also increase productivity, lower life cycle costs, and result in a more pleasurable working experience for people who work with the system

The Information Technology Professional: A Two-wave Study of Factors Impacting Commitment and Satisfaction

In this paper, we present a two-wave study that examined the relationships between three independent variables (professional identification, psychological contract violation, and fairness) and three dependent variables (general satisfaction, satisfaction with the information technology (IT) profession, and affective commitment to the IT profession). The constructs analyzed pertain to the IT workforce and represent areas where the literature has provided conflicting results with regard to the nature of the relationships. Due to the lack of consistency related to causality among these variables, we used 10 separate canonical correlation models to analyze the responses from two surveys distributed across three years. Results consistently revealed a significant relationship between perceived psychological contract violation and fairness with the dependent constructs related to satisfaction (general, and with the IT profession). Both gender and tenure in the IT profession played a role in the identification process for this group of individuals. We present and discuss additional findings along with limitations and directions for future research