Abstract

The usability of an interface is a fundamental issue to elucidate. Many researchers argued that many usability results and recommendations lack empirical and experimental data. In this research, the usability of the web pages is evaluated using several carefully selected statistical models. Universities web pages are chosen as subjects for this work for ease of comparison and ease of collecting data. A series of experiments has been conducted to investigate into the usability and design of the universities web pages. Prototype web pages have been developed according to the structured methodologies of web pages design and usability. Universities web pages were evaluated together with the prototype web pages using a questionnaire which was designed according to the Human Computer Interactions (HCI) heuristics. Nine (users) respondents’ variables and 14 web pages variables (items) were studied. Stringent statistical analysis was adopted to extract the required information to form the data acquired, and augmented interpretation of the statistical results was followed. The results showed that the analysis of variance (ANOVA) procedure showed there were significant differences among the universities web pages regarding most of the 23 items studied. Duncan Multiple Range Test (DMRT) showed that the prototype usability performed significantly better regarding most of the items. The correlation analysis showed significant positive and negative correlations between many items. The regression analysis revealed that the most significant factors (items) that contributed to the best model of the universities web pages design and usability were: multimedia in the web pages, the web pages icons (alone) organisation and design, and graphics attractiveness. The results showed some of the limitations of some heuristics used in conventional interface systems design and proposed some additional heuristics in web pages design and usability.

Highlights

  • User interface is a system layer through which the computer and users communicate [1]-[3]

  • A survey conducted by Myers and Rosson [4] showed that software development devoted almost half of the code to the user interface [4] [5]

  • Using the analysis of variance (ANOVA) procedure to point out the significant differences among the universities web pages with regard to each item of web pages design

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Summary

Introduction

User interface is a system layer through which the computer and users communicate [1]-[3]. How to cite this paper: Subair, S. and AlEisa, H. (2016) Statistical Models for Web Pages Usability. AlEisa part of human computer interaction (HCI). A survey conducted by Myers and Rosson [4] showed that software development devoted almost half of the code to the user interface [4] [5]. Dealing with or achieving goals using the interface is known as the usability of the interface. Usability of a system is how easy the system to use and how easy and efficient to perform task [6]-[8]

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