Also, as the number of reviews gets larger, we can display only the most helpful on the
location??™s main page, and relegate the less helpful reviews to a secondary page.
This is an ideal task for Ajax as we do not want to intrude upon users with a page refresh and hence an inplace
update will allow them to continue looking at the other reviews once they have indicated that a given
review is helpful or not.
To provide feedback on a review we need to ask the question ???was this review helpful to you???? with the
possible answers of yes or no. We keep a count of the number of people who have answered yes and the total
number of respondents. This will then allow us to inform the user that ???N of M people found this review
helpful???. At a later stage, as we get more and more reviews, we could even consider ordering the list by
???helpfulness??? of the review. The user interface to our review feedback system is very simple as shown in
Figure 4.4.
Figure 4.4: Review feedback system has two buttons to provide feedback.
The review feedback system is a single line of text containing the number of people who found the review
helpful and the number of people who have provided feedback. The user is left to determine if this ratio means
that this review is ???helpful??? or not.
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