The perceived usefulness and perceived ease of use constructs have received widespread recent attention as predictors of the user acceptance of information technologies. In this study, the perceived usefulness and perceived ease of use of user interfaces are modeled as predictors of task accuracy, task latency and user confidence in decision quality. Results indicate that interfaces perceived a...

The conventional wisdom in web design literature is that an online shopping website should be free of distracting features; such as animated banners, pop-ups and floating advertisements, as they cause annoyance and disrupt the process of pre-purchase evaluation, leading to poorer purchase decisions. Yet, the recently formulated Unconscious Thought Theory (UTT) suggests that the use of these fea...

Assurance BasedDevelopment (ABD) is a novel approach to the synergistic construction of critical soware systems and their assurance arguments. InABD, theneed for assurance drives a unique process synthesis mechanism that results in a detailed process for building both soware and an argument demonstrating its fitness for use in given operating contexts. In this paper, we introduce the ABD proc...

The provision of network Quality-of-Service (network QoS) is a major challenge in the development of future communication systems. Before designing and implementing these systems, the network QoS requirements are to be specified. Existing approaches to the specification of network QoS requirements are mainly focused on specific domains or individual system layers. In this paper, we present a ho...

The quality of radio astronomical images drastically depends on where we place the radio telescopes. During the design of the Very Large Array, it was empirically shown that the power law design, in which n-th antenna is placed at a distance n from the center, leads to the best image quality. In this paper, we provide a theoretical justiication for this empirical fact.

A paradigm for the system and software design of distributed systems is presented with application to an actual large scale computer network involving both local area networks and a wide area network. A number of design principles are offered with particular reference to how they can be applied to the design of distributed systems. The major contribution of this paper to the field of distribute...

Purpose – The purpose of this paper is to examine quality satisfaction between transactional and relational customers in e-commerce, and it also explores the moderating effect of perceived control and perceived enjoyment on quality satisfaction. Design/methodology/approach – Multivariate analysis of variance and two-way ANOVA were conducted to test the study hypotheses. The samples include 470 ...

Each software entity should have as high quality as possible in the context of limited resources. A software quality measure is a kind of software entity. Existing studies about the evaluation of software measures do not pay enough attention to the quality of specifications of measures. Semiotics has been used as a basis in order to evaluate the quality of different types of software entities. ...

The Internet presents great challenges to the characterization of its structure and behavior. Different reasons contribute to this situation, including a huge user community, a large range of applications, equipment heterogeneity, distributed administration, vast geographic coverage, and the dynamism that are typical of the current Internet. In order to deal with these challenges, several measu...

In a residential or nursing home environment, using ZigBee/802.15.4 wireless network specifically to collect and gather various types of personal health data proves to be a feasible choice. The Continua Guidelines has defined both the sensor-LAN IF (sensor Local Area Network Interface) PHD (Personal Health Device) and PAN IF (Personal Area Network Interface) PHD, but only a Continua certified s...