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Now showing items 31-40 of 97
The odd couple or formal notations and the development of information systems
(University of Hertfordshire, 1990)
The development of information systems and the introduction of Formal Notations have tended to be taught as separate subjects. In this paper we hope to show that it is both possible and desirable to place Formal Notations ...
Optical and infrared polarimetry and photometry of blazars
(1990)
We have carried out a polarization study of 44 blazars and candidate blazars at optical and near-infrared frequencies covering the period 1986 August to 1988 February. The data show flux and polarization properties changing ...
The optical and infrared-emission of blazars
(1990)
A polarization study is presented of 44 blazars and candidate blazars observed at optical and near-IR frequencies. The spectrum of the radiation is discussed in terms of shock acceleration models. Frequency dependence is ...
Integer division by small constants
(University of Hertfordshire, 1990)
Integer division is considered within the context of the development of iHARP, an integrated circuit version of HARP, the HAtfield RISC Processor architecture. The paper demonstrates that execution times for division by ...
User application simulation in the evolution of an intelligent speech interface
(University of Hertfordshire, 1990)
This paper considers the particular nature of speech interfaces and some of the problems inherent in speech as an interface medium, and it attempts to overcome these problems by improving the interface design. The need for ...
An application of task analysis to the development of a generic office reference model
(University of Hertfordshire, 1990)
The roles of task analysis in the software engineering life cycle are considered, and a method is described which is suitable for capturing the high level communication tasks in offices. The contribution of this method to ...
A CCS case study: a safety-critical system
(University of Hertfordshire, 1990)
A level crossing control system is specified in CCS, motivated by a temporal logic specification of the safety requirements. We show that with certain reservations, these can be satisfactorily stated entirely within CCS. ...
An assessment of the contribution of speech interfaces to open access education
(University of Hertfordshire, 1990)
At Hatfield we have had considerable experience in dealing with blind and disabled students, and since 1988 we have been researching into speech interfaces, paying particular attention to their usability and suitability ...
Monitoring and analysis of hypermedia navigation
(Elsevier, 1990)
The use of an interaction monitoring tool in conjunction with commercial spreadsheet arid statistical packages is described. The tool was used to monitor and analyse M.Sc. students' use of a hypermedia system with multiple ...
Audio technology in IT education for the blind
(University of Hertfordshire, 1990)
At Hatfield Polytechnic, we have a long history of educating blind students in Information Sciences. This paper highlights the current use of audio technology by our blind students and looks at it in the context of the ...