Since the user language was used in cnn therefore it

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Unformatted text preview: was very clear. The system process the request instantly. In few places where search option was used, the system showed a message “Processing data” so that user should know something happening. For example, in task 8 “Go to sports menu, watch any sports video” the request was being processed with a system status “Processing data”. Therefore, CNN portal supports the theory of system visibility. Use user’s own language According to Nielsen (1990) the system should speak the user’s language, with words, phrases and concepts familiar to the user, rather than system-oriented expressions In CNN portal, the real life language was used. Especially in news section, easy and every day English language was used. The vocabulary selection was very simple. While writing analysis on current affaires, the simple sentences were used and scientific vocabulary was avoided. For example, in task 2, “Choose world news headlines and read any corresponding article”, the article “Americans worry about Afghanistan” the simple and easy to understand language was used in a logical order. Since, the user language was used in CNN, therefore it supports the theory. User control and freedom According to Nielsen (1990) users generally choose system functions by mistake and will need a clearly marked "emergency exit" to leave the unwanted situation without having to go through an extended dialogue such as support undo or redo. The user control and freedom was ensured on CNN portal, since user easily moved around the portal using “Next”, “Previous” and “Go to Top” options. By using these navigation options user can easily move around portal with ease of freedom, therefore CNN portal supports the theory. 78 Consistency and standards According to Nielsen (1990) consistency is the most important design principles for usable systems. This can be applied at multiple levels; at first a system should at the bare minimum be consistent within itself. In CNN case, the portal was found highly consistent. All the main headings were in bold and in bigger font, whereas all the “detailed news” were in normal text. Wherever, there was a “SEARCH” option, it was followed by a “SUBMIT” button throughout the portal. Weather news in task-3 and search a video in task-4 are a good example of consistency in CNN portal, therefore it supports the theory. Error Prevention According to Nielsen (1990) good error messages that make sense to the user are always necessary. It is ideal to create a “careful design” which prevents a problem from occurring in the first place. The error prevention method in CNN portal was not very effective, therefore it does not supports the theory. Since, in task-6 under menu, none of videos were found operational. It was even more frustrating that system does not produce any error. In addition, in task-7 “Choose a Travel plan of your choice” the external link for Air Canada was broken which shows that portal was not updated appropriately. Recognition versus Recall Nielsen (1990) recommends that the user's memory load should be minimized by making objects, actions, and options visible. The user should not have to remember information from one part of the dialogue to another part. Since, the nature of CNN portal was limited to news and no complex shopping experience was involved, therefore most of the information was very simple to understand and recognize. In addition, the news available under various sub links can easily be recognized, for example, the football score and ice-hockey events reveals that the information is arranged under “Sports” link. CNN portal supports the theory. Flexibility of use According to Nielsen (1990) system should be flexible to use for every one. Since, user’s levels of experience with systems can very; this leads to the necessity of having multiple “views” of users. System should be flexible to cater both inexperienced and experienced users. In CNN case, the portal provides high level of flexibility, because within a very short period of time; the users were successfully able to conduct variety of tasks. Since, the portal was flexible to navigate, therefore users of different backgrounds (experienced and inexperienced) were equally comfortable to complete all tasks 1 – 8, therefore it supports the theory. 79 Aesthetic and minimalist design According to Nielsen (1990) dialogues should not contain information which is irrelevant or not often needed. The information available on CNN was mostly relevant and important. The main headings were generally concise however user can proceed to sub links for details. The news was arranged based on their relevancy to each other. In general, the design was aesthetic and supports the theory. Sensible error messages According to Nielsen (1990) error messages should be expressed in plain language (no codes), precisely indicate the problem, and constructively suggest a solution. In CNN portal, the error occurred two times. At first place, while conducting task-6 “wat...
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