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Unformatted text preview: be drawn (Miles &
Data display refers to an organized assembly of information that permits conclusions,
drawing and action taking. Since, the data collected can be boring and overloaded
humans’ information-processing capabilities, displays should be used to organize the
information in an immediately accessible form e.g schedules, graphs, etc. (Miles &
The final analytical activity for the qualitative research is conclusion
drawing/verification. Analysts start to decide what things mean from the beginning of
data collection. They do this by noting regularities, patterns, explanations, possible
configurations, causal flows, and propositions. However, a competent researcher should
hold such conclusions lightly, while maintaining both openness and degree of
scepticism. The research should follow these three steps in data analysis (Miles &
Our data analysis is based on these three steps. We will use the within-case analysis and
the cross-case analysis mentioned by Miles and Huberman (1994). The data will first be
reduced through a within-case analysis where the cases will be compared with the
theory and frame of reference. The data will then be further reduced by being displayed
through a cross-case analysis where the cases will be compared with one another to find
similarities and differences and finally we will draw our conclusion. 4.7 Validity and Reliability
Reliability and validity are essential aspects of research practice; therefore importance
of these criteria’s should be recognized by researchers who are engaged in survey work.
These terms are not always easily distinguished; some degree of overlap can be
expected and they are somehow interconnected (Chisnall, 1997). 53 4.7.1 Validity
Validity refers to the extent that how well a specific research method measures what it
claims to measure. For instance, a thermometer is designed to measure temperature and
a barometer is designed to measure atmospheric pressure. It is generally more difficult
to resolve validity than reliability (Chisnall, 1997).
In order to increase the validity, we have formed a detail task table which will act as
guide for WAP testing students to carryout some certain tasks, therefore students can
successfully carryout these tasks.
Reliability refers to the stability and consistency of results obtained from research. The
extent of the probability that the same results could be obtained if the measures used in
the research were replicated. Basically, reliability is associated with the consistency,
accuracy and predictability of specific research findings. In addition, the role of
reliability is to minimize the errors and biases in a study. There are two major things
that can increase reliability: the use of case study protocol and the development of a
case study database (Chisnall, 1997). To increase reliability, we prepared our
satisfaction questionnaire and open-ended questions were asked in questionnaire. 54 CHAPTER 5. DATA PRESENTATION This chapter will present the empirical data collected from the two case studies. The
presentation is divided into two sections; it starts with introduction of the cnn.com,
followed by amazon.com and their data respectively. We will present the data collected
through questionnaires which was based on our Preset tasks executed by WAP users. It
does the same order as our research questions are posed, conceptualized and the
literature was reviewed. 5.1 CNN.COM CNN.com is among the world's leaders in online news and information delivery. CNN
has a team of dedicated staff to work 24 hours, seven days a week throughout the year.
CNN's world headquarters are located in Atlanta, Georgia, and in bureaus worldwide.
CNN.com heavily relies on CNN's global team of almost 4,000 news professionals.
CNN.com features the latest multimedia technologies, from live video streaming, audio
packages to searchable archives of news features and background information. The site
is updated continuously throughout the day. (www.cnn.com). CNN.com is owned by
parent company “Time Warner Inc.” which is a leading global media and entertainment
company with businesses in films, entertainment, television networks, interactive
services, cable systems and publishing. In terms of quality, popularity and financial
results, Time Warner divisions are generally at the top of their categories. America
Online, Time Inc., Time Warner Cable, Home Box Office, New Line Cinema, Turner
Broadcasting System and Warner Bros. are just few examples. (www.timewarner.com). RQ 1. Does the design of current WAP services contain major
usability flaws? 5.1.1 CNN.COM In Literature review, we have studied usability engineering, usability principles,
usability attributes and usability principles for WAP services. In our research
methodology chapter, we have formed our preset tasks based on usability principles for
WAP services to answer our first research question to workout does the design...
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This document was uploaded on 12/31/2013.
- Fall '13
- The Land