Unformatted text preview: tal case, the tasks are structured using 25 common menus starting
from “World, U.S, Weather, Business, Sports, Law, video, Travel…up to contact us”. It
guides the user how and where to begin with the portal. The user can easily complete
basic and common tasks with the minimum amount of interaction. Therefore, the CNN
portal fits with the theory of structure tasks.
According to Nielsen (1993) the system should be easy to learn so that the user can
rapidly start getting some work done with the system. Various tasks were designed to
test learnability of CNN WAP portal. For instance, task 6 from CNN portal “Go to
Video menu and watch any video clip of your own interest” was typically designed to
test the learnability factor. The users validated the ease of learnability by confidently
moving around the portal and successfully completing the tasks. In few minutes, they
become familiar with the portal. Therefore, CNN portal fits with the theory of
Efficiency of Use
According to Nielsen (1993) to ensure a high level of productivity, the systems should
be efficient to use, so that once the user has learned the system they can easily use it.
System efficiency refers to the stable performance stage of expert user. In CNN case, it
was observed that the portal provides high level of efficiency of use, since within a very
short period of time; the users were successful and confident to conduct a variety of
tasks. While completing tasks 1 – 8, users easily navigate within the system and
reported that the portal is efficient; therefore it fits with the theory. 69 Memorability
According to Nielsen (1993) memorability is referred that a system should be easy to
remember, so that a formal user is able to return to the system after some period without
having to relearn everything over again. The CNN portal found easy to memorize. For
instance, in task 6 “Go to Video menu and watch any video clip of your own interest and
go back to home page”, the users were involved in various steps, however they easily
manage to complete that task and at the end of the task 1- 8, mostly users feel that they
are now expert users. Therefore, CNN portal align with the theory.
According to Nielsen (1993) subjective satisfaction refers to the extent the system is
pleasurable to use. User likeness is critical for system success; therefore the system
should be pleasant to use to achieve subjective satisfaction. Since, the subjective
satisfaction is an important usability attribute for the systems that are used on an
optional basis in a non-work environment such as computing games, interactive fiction
and creative painting. In order to validate subjective satisfaction, the task-7, “Go to
Travel menu, and choose a travel plan of your own choice”, and task-8 “Go to sports
menu, under sports highlights, search sport sore of any game / watch any sports video”
were designed. The users successfully carried out the tasks and reported them
operational. In addition, the users were successfully able to move around the system
easily and no major errors were observed, therefore both WAP portals agree with the
theory of subjective satisfaction.
E-Navigation and Labeling
Ramsay (2001) reveals that E-Navigation and Labeling are two major issues. In
contrast, the networks and content providers offered broad lists of sites and services by
proving that everything a WAP user may need, however, for the users this is a recipe for
disaster. The long manus required thumb-numbing and scrolling. Categories are good
way to sort information. In CNN case, it is observed that most of the information
available on CNN portal is organized by making various categories. For instance, all the
world news are covered under “World” link, all of the travel related news and deals are
covered under “Travel” and all law related articles and upcoming under “Law” therefore
all the information is organized using different categories. The CNN portal fully
supports the theory.
Unnecessary browse time
According to Ramsay (2001) time is big money on WAP. Any portal that is easy to
browse and presents its information clearly is one that the users will like to return again 70 and again. Generally all major WAP portals took unnecessary time to browse and
display information. In CNN.com case of Task-5, under cnn.com/LAW link, there were
almost 9 different big and small images found which noticeably reduced the down
loading time, Therefore CNN does not fully supports the theory.
According to Ramsay (2001) WAP sites should be designed in a way to minimize user
input. In order to fix this issue, WAP products should be offered as preset choices, so
that user just needs to browse and select the required information. In CNN case of Task8, the sports highlight shows a broad range of sport highlights including sports scores.
In order to find any particular sports info, the user has to write the sports name in
“Search Box” to...
View Full Document
- Fall '13
- The Land, Usability