The aim of the research was: *to gain a better understanding on the concepts of Human-computer interaction (HCI) in general and the application of HCI principles in this field; to gain a better understanding of electronic registration systems (e-registration systems) and the use of web forms for this purpose; to gain a better understanding of which HCI principles could be applied to the design of a web form for e-registration; to apply the identified HCI principles to an example of a web form that was to be created; •to evaluate the design of the web form by means of different data-gathering techniques, and •to redesign the web form according to the data obtained from method triangulation. In order to achieve these objectives, the research used, firstly a research methodology to determine which research approach to follow. Secondly, a literature review was then used to identify which HCI principles would be appropriate in the interface design of a web form for e-registration. The empirical part of this study consisted of a web form created according to these HCI principles, which was then evaluated according to usability goals. The evaluation included different data-gathering techniques, namely an observation of the manner in which the participants interacted with the web form, an interview which consisted of in-depth questions regarding the improvement of the web form and a questionnaire which consisted of specific questions regarding the usability of the web form. The web form was redesigned according to the suggestions made by the participants and a final web form prototype was introduced. Finally, recommendations were made for additional studies in order to extend the study of HCI principles application in web forms, specifically in the design of tax e-registration systems in South Africa. / Thesis (MSc (Computer Science))--North-West University, Vaal Triangle Campus, 2013

The aim of the research was: *to gain a better understanding on the concepts of Human-computer interaction (HCI) in general and the application of HCI principles in this field; to gain a better understanding of electronic registration systems (e-registration systems) and the use of web forms for this purpose; to gain a better understanding of which HCI principles could be applied to the design of a web form for e-registration; to apply the identified HCI principles to an example of a web form that was to be created; •to evaluate the design of the web form by means of different data-gathering techniques, and •to redesign the web form according to the data obtained from method triangulation. In order to achieve these objectives, the research used, firstly a research methodology to determine which research approach to follow. Secondly, a literature review was then used to identify which HCI principles would be appropriate in the interface design of a web form for e-registration. The empirical part of this study consisted of a web form created according to these HCI principles, which was then evaluated according to usability goals. The evaluation included different data-gathering techniques, namely an observation of the manner in which the participants interacted with the web form, an interview which consisted of in-depth questions regarding the improvement of the web form and a questionnaire which consisted of specific questions regarding the usability of the web form. The web form was redesigned according to the suggestions made by the participants and a final web form prototype was introduced. Finally, recommendations were made for additional studies in order to extend the study of HCI principles application in web forms, specifically in the design of tax e-registration systems in South Africa. / Thesis (MSc (Computer Science))--North-West University, Vaal Triangle Campus, 2013

Although Internet booking system has reached its peak in the recent years many previous researches say there is always a growing interest in the role and nature of design in HCI principles. Small difference can create a large impact in the business of Internet booking system. The future of any online booking system will be heavily depended on how easy and how friendly the system is designed. In our thesis, we are going to suggest what aspects of usability principles are important in making the user interface of current flight booking systems to reach a high degree of usability. For the above purpose we will find usability flaws in the current user interface design of flight booking systems and highlight the potential factors or aspects that make user interface more acceptable to users. To reach this purpose we will use a case study and analyze using an explanation building technique. The empirical data was collected through satisfaction questionnaire which was based on nine “preset tasks” which are designed depending on various usability principles. In our thesis, we will create an understanding on the aspects of usability principles used to make a user interface more acceptable to the users. This understanding will lead future researches in the betterment of interface design of flight booking system.

Over the last few years, text messaging has taken the domination among young adults. Messaging via phones has a wide range of both, human and social factors. These Instant Messaging [IM] applications also offer features other than just texting and for example, sending documents, photos, videos, links and more. All these features and attributes are making people pull towards these IM applications more and more. Despite having these features, people expect more from these IM applications, which leads these IM applications to compete with each other by providing more features or modifying the existing features. This competition to be the better application amongst the IM applications has led us to do a research study on which applications have better user experience through a survey evaluation. Background: Messaging through phones got a lot easier when platforms like iMessage, Telegram, WhatsApp, etc., were introduced to people. WhatsApp and Telegram gained popularity over iMessages as iMessages was limited only to IOS. So, technically people preferred WhatsApp and Telegram over iMessages. In order, to deduct which application is preferred among WhatsApp and Telegram, a survey evaluation is done based on Usability Heuristics. Thus, the title of the thesis is “Comparative research of WhatsApp and Telegram by using heuristic principles.” Objectives: The prime objective of the thesis is to compare both the applications, WhatsApp, and Telegram and to find which application has followed the principles of Usability most. The comparison between these two applications is done via a survey evaluation and the results will be noted. Methods: The method that has been chosen and used for comparison is survey evaluation. The survey will be done via google forms, and the questions of the study are based on HCI principles. The survey will have a total of 10 questions. Approximately of 45 users will be given the questionnaire google form to fill out. Results: The results from the survey will be collected and noted. The results are examined and the application that has the better user experience will be found. Conclusion: From the study and the survey, it is concluded that WhatsApp has a better user experience than Telegram.

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The aim of this thesis is to redesign an interactive system “Arngren website” (https://arngren.net/), based on usability evaluation. Survey is used to perform the evaluation of the website to identify the usability problems. Based on the results obtained in the evaluation process, better suggestions are given to redesigning the interactive system’s user interface by applying Human-Computer Interaction (HCI) design principles. Prototyping method is used to redesign the interactive system. After redesigning the existing website, it is also subjected to the survey and results are presented in the report.