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Browsing by Author "Kutar, M."
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The Cognitive Dimensions of an Artifact vis-a-vis Individual Human Users : Studies with Notations for the Temporal
Kutar, M.; Nehaniv, C.L.; Britton, C.; Jones, S. (2001)Cognitive Technology explores ways in which the cognitive fit between people and technology may be optimized. If this goal is to be achieved we will require methods of assessing tools and information arftifacts in order ... -
Cognitive Dimensions of Notations: Design Tools for Cognitive Technology
Blackwell, A.F.; Britton, C.; Cox, A.; Green, T.; Gurr, C.; Kadoda, G.; Kutar, M.; Loomes, M.J.; Nehaniv, C.L.; Petre, M.; Roast, C.; Roe, C.; Wong, A.; Young, R.M. (2001)The Cognitive Dimensions of Notations framework has been created to assist the designers of notational systems and information artifacts to evaluate their designs with respect to the impact that they will have on the users ... -
A Comparison of Empirical Study and Cognitive Dimensions Analysis in the Evaluation of UML Diagrams
Kutar, M.; Britton, C.; Barker, T. (2002)It is important that all those who use representations of a system during the development process can clearly understand the representations that are used. Research has shown that structure plays an important role in whether ... -
A comparison of timed CSP and time basic nets for the specification of time constraints
Kutar, M. (University of Hertfordshire, 1998)A level crossing case study was specified in times CSP. The same case study was then specified using Time Basic Nets. To provide an element of control a second case study, the secure room, was specified first using Time ... -
An empirical study of factors that affect user performance when using UML interaction diagrams
Swan, J.; Barker, T.; Britton, C.; Kutar, M. (Institute of Electrical and Electronics Engineers (IEEE), 2005)During the requirements process it is of key importance that all representations used are clearly understood by those who must use them. Therefore it is essential to ensure that those representations are presented as ... -
An Empirical Study of User Preference and Performance with UML Diagrams
Britton, C.; Kutar, M.; Anthony, S.; Barker, T.; Beecham, S.; Wilkinson, V. (Institute of Electrical and Electronics Engineers (IEEE), 2002)Elicitation and validation of user requirements depend, to a large extent, on the effectiveness of the tools and techniques used as a vehicle for discussion between developers and users during the requirements process. ... -
A graphical representation for communicating sequential processes
Kutar, M.; Britton, C.; Jones, S. (University of Hertfordshire, 1997)The use of formal notations has many advantages in the specification of interactive systems. However, validating specifications written using formal notations is generally difficult as these specifications are often hard ... -
Investigating the Influence of Structure on User Performance with UML Interaction Diagrams
Kutar, M.; Britton, C.; Barker, T.; Swan, J. (2003) -
On the representation of time in interaction
Kutar, M.; Britton, C.; Jones, S. (University of Hertfordshire, 1999)The growth in interactive, distributed and multimedia systems and particularly the explosion in use of the World Wide Web means that the concept of time is being recognised as of increasing importance in systems which are ... -
Specifying Multiple Time Granularities in Interactive Systems
Kutar, M.; Britton, C.; Nehaniv, C.L. (2001)Time plays an important role in interactive systems, but can be difficult to specify, particularly where temporal properties exist at several different time granularities. The relationship between different time granularities ... -
Speedy services : time, usability and E-Commerce
Kutar, M.; Britton, C.; Jones, S. (University of Hertfordshire, 1999)Times play a vital role in human-computer interaction. However, when interaction takes place over a network, as is the case with e-commerce, it is impossible to guarantee that temporal requirements will be met. Therefore ... -
Temporal requirements and the human computer interface : not just an afterthought
Kutar, M.; Britton, C.; Jones, S. (University of Hertfordshire, 1999)Time plays an intrinsic part in the human computer interface. We argue that temporal issues must be recognised as fundamental to the interface, not relegated to the status of quality requirements. If we treat time as being ... -
Time in specifications : what exactly are we trying to specify?
Kutar, M.; Britton, C.; Jones, S. (University of Hertfordshire, 1999)It is generally accepted that the specification of time can be a difficult goal to achieve. Much of the research in this area has concentrated on new methods which allow for the specification of time. However, little ... -
User Preference and Performance with UML Interaction Diagrams
Swan, J.; Kutar, M.; Barker, T.; Britton, C. (Institute of Electrical and Electronics Engineers (IEEE), 2004)During the requirements process it is of key importance that all representations used are clearly understood by those who must use them. Therefore it is essential to ensure that those representations are presented as ...