As a mobile phone has various advanced functionalities or features, usability issues are increasingly challenging. Due to the particular characteristics of phone, typical evaluation methods and heuristics, most which relevant software system, might not effectively be applied phone. Another point consider is that activities should help designers find problems easily produce better design solutions. To support practitioners industry, we propose framework for evaluating based on multi-level,...

Since the introduction of component-based development (CBD), an effective component identification technique is important factor for successful CBD projects. As in CORBA model OMG, a consists one or more related objects, carrying out homogeneous functionality. Most methodologies utilize UML as basic notational convention. A diagram its variation used to depict components. However, current lack systematic algorithm that can be effectively group use-cases and classes into In this paper, we...

Recently there has been increasing research interest in displaying graphs with curved edges to produce more readable visualizations. While are several automatic techniques, little done evaluate their effectiveness empirically. In this paper we present two experiments studying the impact of edge curvature on graph readability. The goal is understand advantages and disadvantages using for common tasks compared straight line segments, which conventional choice showing node-link diagrams. We...

As the nature of human interaction with modernized socio-technical systems is increasingly cognitive and complex, many studies have been devoted to examine a range complexity factors influencing performance. However, there lack theoretical basis discerning categorizing those factors. It thus inevitable establish conceptual framework that can be used identify organize in an analytical way. In this paper, we regard world as abstract system propose new consisting five views, each which...

A nuclear power plant (NPP), as a complex safety-critical system, requires qualified operators working in teams. Interactions between the main control room (MCR) team are important to ensure safe operation. Since communication is basis of operators’ interactions, significant factor affecting teamwork performance. Especially during NPP emergencies, poor may lead incorrect decisions and countermeasures, causing deterioration toward accidents. Moreover, an emergency situation, response teams...

Usability has been regarded as a critical factor affecting the quality of mobile phones. Many studies have examined usability impact factors phones on basis software concepts. However, considering multi-media and information appliances, new concept associated should be developed. This paper proposes conceptual framework which five views to reflect different aspect interactions between users phones, from various models can derived. Five include user view, product interaction dynamic execution...

Abstract In regard to the effectiveness of types knowledge on fault diagnosis performance, many experimental studies showed that training with procedural (diagnostic rules) is very effective enhance performance. But effects principle (theoretical knowledge) have been controversial. Some went so far as claim not useful for diagnosis. However, common experience suggests understanding principles system dynamics valuable in certain diagnostic situations. this study, we conducted an experiment...

As component-based development (CBD) rapidly spread throughout the software industry, a comprehensive methodology is needed to apply it more systematically. For this purpose, new CBD named Magic & Robust Methodology Integrated III (MaRMI-III) has been developed. The purpose of paper present MaRMI-III by its constituent processes and claim that can be used support system developers conduct in consistent manner. First, we review approach role methodology, then explain several characteristics...

Several evaluation methods have been developed in various application domains for studying human interaction with complex systems. Of those, emphasizing the study of cognitive activities context close to real one, researchers paid much attention how use a full-scope simulator systematic way. However, studies continue suffer from methodological problems that could challenge value using simulator. This article describes common issues and principles reported literature. Then reports three...

Objective: The purpose of this paper is to introduce new research trends human error and accident modeling suggest future promising directions in those areas. Background: Various methods techniques have been developed understand the nature errors, classify them, analyze their causes, prevent negative effects, use concepts during design process. However, it has reported that they are impractical ineffective for modern complex systems, approaches needed secure safety systems. Method: Six...