ETR 261-4 : 20001
Current
The latest, up-to-date edition.
Hardcopy , PDF
English
Foreword
Introduction
1 Scope
2 References
3 Definitions, symbols and abbreviations
4 Theoretical Background
4.1 Usability of Existing Features and Functions
4.2 Mental models
4.3 Elderly users
4.4 Hypothesis, expectations and research questions
5 Two different conceptual models
5.1 The categories manual
5.2 The No Categories manual
6 An enhanced minimal phone based interface for ISDN
supplementary services
6.1 Design
6.2 Simulation
6.3 Differences between the CAT and the NoCAT User
Interface
7 Method
7.1 Experimental Task
7.2 Experimental Design and Independent Variables
7.3 Data registration
7.4 Definition of dependent variables
7.5 Procedure
7.6 Pilot study
7.7 Hypothesis
7.8 Statistical Analyses
8 Results
8.1 Descriptive statistics with regard to the elderly
8.2 Effects of different types of transmitted conceptual
model and effects of practice
8.3 Types of error
9 Discussion
9.1 Discussion of the Experimental Method
9.2 Discussion of Results
10 Conclusions and Recommendations
10.1 Conclusions
10.2 Recommendations and Further Study
History
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