Human Computer Interaction (HCI) is concerned with every aspect of the relationship between computers and people (individuals, groups and society). The annual meeting of the British Computer Society's HCI group is recognised as one of the main venues for discussing recent trends and issues. This volume contains refereed papers and reports at the 1993 meeting. A broad range of HCI related topics are covered, including user interface design, user modelling, tools, hypertext, CSCW, and programming. Both research and commercial perspectives are considered, making the book essential for all researchers, designers and manufacturers who need to keep abreast of developments in HCI.

The need for ensuring that usability measurement results can contribute to the ongoing development of a software product in a formative way is the main theme of this paper. It is recognized that acquiring, structuring, and analysing data about the actual progression of a product's development is a challenging task. Even more difficult, is the problem of making the results of any analysis of that data readily accessible to all the participants at regular intervals in the process. The paper presents an approach to supporting that process exemplified in SEDRES (Systems Engineering Data Representation and Exchange Standardization), a European Aerospace collaborative project on developing a data exchange capability for design tools. The main subject is the role of a software tool called NUD*IST (Non-numerical Unstructured Data Indexing Searching and Theorizing) (QSR, 1997), in providing support for structuring and analysing longitudinal data and for regular feedback to the project partners about the product under development. The paper begins with an overview of the context of use, a systems engineering project involving five major companies in the European Aerospace industry. SEDRES is a three year project which started in January 1996, co-funded by an ESPRIT grant from the European Commission. The project partners comprise Aerospatiale, Alenia, British Aerospace, Daimler-Benz Aerospace, Saab and Linkoping University (Sweden), the Australian Centre for Test & Evaluation (ACTE), and Loughborough University Telecommunications and Computer-Human Interaction (LUTCHI) Research Centre.

As a new medium for questionnaire delivery, the Internet has the potential to revolutionize the survey process. Online (Web-based) questionnaires provide several advantages over traditional survey methods in terms of cost, speed, appearance, flexibility, functionality, and usability [Bandilla et al. 2003; Dillman 2000; Kwak & Radler 2002]. Online-questionnaires can provide many capabilities not found in traditional paper-based questionnaires: they can include pop-up instructions and error messages; they can incorporate links; and it is possible to encode difficult skip patterns making such patterns virtually invisible to respondents. Despite this, and the emergence of numerous tools to support online-questionnaire creation, current electronic survey design typically replicates the look-and-feel of pap- based questionnaires, thus failing to harness the full power of the electronic survey medium. A recent environmental scan of online-questionnaire design tools found that little, if any, support is incorporated within these tools to guide questionnaire design according to best-practice [Lumsden & Morgan 2005]. This paper briefly introduces a comprehensive set of guidelines for the design of online-questionnaires. It then focuses on an informal observational study that has been conducted as an initial assessment of the value of the set of guidelines as a practical reference guide during online-questionnaire design. 2 Background Online-questionnaires are often criticized in terms of their vulnerability to the four standard survey error types: namely, coverage, non-response, sampling, and measurement errors.

Human Computer Interaction (HCI) is concerned with every aspect of the relationship between computers and people (individuals, groups and society). The annual meeting of the British Computer Society's HCI group is recognized as one of the main venues for discussing recent trends and issues. This volume contains refereed papers and reports from the 1995 meeting. The materials cover a broad range of HCI related topics, including visualization, computer supported communication, task analysis, formal methods, user support and cyberspace. The documents consider both research and commercial perspectives, making the book essential for all researchers, designers and manufacturers who need to keep abreast of developments in HCI.

Human Computer Interaction (HCI) is concerned with every aspect of the relationship between computers and people (individuals, groups and society). The annual meeting of the British Computer Society's HCI group is recognised as one of the main venues for discussing recent trends and issues. This volume contains refereed papers and reports from the 1994 meeting. A broad range of HCI related topics are covered, including interactive systems development, user interface design, user modelling, tools, hypertext and CSCW. Both research and commercial perspectives are considered, making the book essential for all researchers, designers and manufacturers who need to keep abreast of developments in HCI.

Disciplines, including Human-Computer Interaction (HCI), consist of knowledge supporting practices which solve general problems (Long & Dowell, 1989). A disci pline thus requires knowledge to be acquired which can be applied by practitioners to solve problems within the scope of the discipline. In the case of HCI, such knowledge is being acquired through research and, less formally, through the description of successful system development practice. Some have argued that knowledge is further embodied in the artefacts. HCI knowledge is applied to solve user interface design problems. Such applica tion is facilitated if the knowledge is expressed in a conception which makes explicit the design problems of practitioners. A conception has been proposed by Dowell & Long (1989). The conception provides a framework within which to reason about the implications of designs for system performance. The framework is concordant with the trend towards design, discernible in recent HCI research. It is further compatible with notions of top-down design, fundamental to software engineering practice. 2 Teaching and the HeI Research and Development Gap 2.1 An Assessment of Current HCI Education Teaching is one means by which practitioners learn to specify discipline problems. It is also a means by which they acquire knowledge to enable the problems to be solved.

These papers detail the theoretical basis and methodical practice of HCI, the interaction of HCI with other disciplines, and individual relevance. This book is a comprehensive guide to the current research in HCI which will be essential reading for all researchers, designers and manufacturers whose work impinges on this rapidly moving field. Contributions are included from leading researchers and designers in both industry and academia.

Most organisations try to protect their systems from unauthorised access, usually through passwords. Considerable resources are spent designing secure authentication mechanisms, but the number of security breaches and problems is still increasing (DeAlvare, 1990; Gordon, 1995; Hitchings, 1995). Unauthorised access to systems, and resulting theft of information or misuse of the system, is usually due to hackers "cracking" user passwords, or obtaining them through social engineering. System security, unlike other fields of system development, has to date been regarded as an entirely technical issue - little research has been done on usability or human factors related to use of security mechanisms. Hitchings (1995) concludes that this narrow perspective has produced security mechanisms which are much less effective than they are generally thought to be. Davis & Price (1987) point out that, since security is designed, implemented, used and breached by people, human factors should be considered in the design of security mechanism. It seems that currently hackers pay more attention to human factors than security designers do. The technique of social engineering, for instanc- obtaining passwords by deception and persuasion- exploits users' lack of security awareness. Hitchings (1995) also suggests that organisational factors ought to be considered when assessing security systems. The aim of the study described in this paper was to identify usability and organisational factors which affect the use of passwords. The following section provides a brief overview of authentication systems along with usability and organisational issues which have been identified to date. 1.

This proceeding contains a selection of state of the art refereed papers on current Human-Computer Interaction topics, presented at the HCI 2000 conference. This conference is the annual conference of the British HCI Group, and was held at Sunderland University in September 2000. HCI 2000 is the premier European Human-Computer Interaction forum. People and Computers XIV represents a comprehensive guide to current research in HCI which will be essential reading for all researchers, designers and manufacturers who need to keep abreast of developments in HCI.

Covers topics like hypertext, multimedia and graphics. Essential for designers, researchers and manufacturers.