When the business requirements and the user interface (UI) of a system are separated, they will most likely not fit together. Even if requirements are well-specified and implemented, errors may be induced by human-computer interaction through a bad user interface. Such a system might not even be used at all, neither will a great user interface of a system be very useful, with features that are ...

High Schools in England began to teach computing long before the advent of the personal computer and the graphical user interface made it possible to teach aspects of information technology skills to nonspecialists. We demonstrate that early high school computing was highly consistent with academic and professional practice. This consistency was eroded from the mid-1980s when the English school...

this paper describes the system design of a portable and economical mu rhythm based brain computer interface which employs cypress semiconductors programmable system on chip (psoc). by carrying out essential processing on the psoc, the use of an extra computer is eliminated, resulting in considerable cost savings. microsoft visual studio 2005 and psoc designer 5.01 are employed in developing th...

When sensitive information is exchanged with the user of a computer system, the security of the system’s user interface must be considered. In this paper, we show how security relevant properties of a user interface can be modelled and specified using the Object Constraint Language (OCL).

This paper discusses our preliminary experiences in the design of a user interface of a computerized content-rich vocational training courseware meant for users with little or no computer experience. In targeting a growing population with limited access to skills training of any sort, we faced numerous challenges, including language and cultural differences, resource limits, gender boundaries a...

This article emphasizes the significance of the user interface design to the development of an accurate mental or conceptual model by the users of a hypermedia computer system. It begins with a review of the role of mental/conceptual models and their importance to hypermedia users. Also discussed are the role of the user interface in hypermedia systems and specific design issues that impact the...

Computer systems vary in their structure, functionality, purpose, size and the way in which they represent their internal workings. Humans differ in background, sex, education, personality, cognitive skills and preferences, motivation, goals and mood. There is a social context to HCI which involves organizational and political factors, the user support which is available and the pressures of a ...

Human computer interaction is a major issue in research industry. In order to offer a way to enable untrained users to interact with computer more easily and efficiently gesture based interface has been paid more attention. Gesture based interface provides the most effective means for non-verbal interaction. Various devices like head mounted display and hand glove could be used by the user but ...