People and computers XIII : proceedings of HCI '98

Usable Software and Its Attributes: A Synthesis of Software Quality, European Community Law and Human-Computer Interaction.- Analysis of Problems Found in User Testing Using an Approximate Model of User Action.- Software Support for Usability Measurement: An Application to Systems Engineering Data Exchange Development.- The Persona Effect: How Substantial Is It?.- The Influence of Target Size, Distance and Direction on the Design of Selection Strategies.- A Study of Two Keyboard Aids to Accessibility.- Combining Goals and Functional Requirements in a Scenario-based Design Process.- Understanding a Task Model: An Experiment.- Analysing Requirements to Inform Design.- Generalizing Claims and Reuse of HCI Knowledge.- Detecting and Resolving Temporal Ambiguities in User Interface Specifications.- The Design of New Technology for Writing On-line Help.- Representation Matters: The Effect of 3D Objects and a Spatial Metaphor in a Graphical User Interface.- The Effect of Layout on Dispatch Planning and Decision Making.- Distortion-oriented Workspace Awareness in DOME.- Towards Principles for the Design and Evaluation of Multimedia Systems.- How Can Multimedia Designers Utilize Timbre?.- Using Earcons to Improve the Usability of a Graphics Package.- A New Concept Touch-Sensitive Display Enabling Vibro-Tactile Feedback.- Preliminary Investigations into the Use of Wearable Computers.- On the Problems of Validating DesktopVR.- Author Index.- Keyword Index.