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5377
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Industrial Engineering
Date
Dec 6, 2023
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docx
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Uploaded by MegaFerret3135
Catherine Stringfellow
GUI/Usability Evaluation Assignment
REPORT
This report outlines the design and development process of a Mortgage
Calculator GUI. It also includes a usability evaluation plan that was
conducted to test the effectiveness of the GUI. A log of project-related
material and design decisions was maintained throughout the process.
GUI DESIGN AND DEVELOPMENT:
The GUI was designed and developed using Visual Studio. The
application consists of five forms, including a main form, a new
mortgage form, an open mortgage form, a save mortgage form, and an
about form. The main form includes a menu, a tool bar, and minimize,
maximize, and close boxes. Users can start a new mortgage calculation,
open an existing calculation, save a calculation, apply extra principle,
exit the application, and access the about window.
The new mortgage form allows users to enter input data on mortgage
amount, interest rate, and number of payments in months. The main
form displays both the input data and the resulting data for all
payments, including payment number, principle paid, interest paid, total
principle paid, total interest paid, extra principle paid, and balance of
the loan.
Catherine Stringfellow
GUI/Usability Evaluation Assignment
ADHERENCE TO DESIGN GUIDELINES, PRINCIPLES, AND THEORIES:
The Mortgage Calculator GUI adheres to several design guidelines,
principles, and theories. In terms of layout, the use of blank spaces
effectively separates controls on the form. In addition, consistency was
prioritized throughout the application. For example, the terminology
used on the forms is consistent, using "Mortgage Amount" on both the
main and new mortgage forms. Furthermore, the Schneiderman's
Golden rules were considered when developing the application,
including striving for consistency in terminology and using feedback to
provide confirmation to the user.
USABILITY EVALUATION:
An experiment was conducted to evaluate the usability of the Mortgage
Calculator GUI. Participants were asked to complete a set of tasks using
the GUI, and their task completion time and number of errors were
recorded. The experiment was set up in a controlled environment, and
participants were provided with a pre-test questionnaire to gather
demographic information.
A statistics book was consulted to determine how to set up the
experiment effectively. Data analysis will include descriptive statistics,
such as mean and standard deviation, to describe the participants'
Catherine Stringfellow
GUI/Usability Evaluation Assignment
performance. In addition, inferential statistics, such as t-tests and
ANOVA, will be used to analyze the differences between groups.
SUMMARY
:
In conclusion, the Mortgage Calculator GUI was designed and
developed using Visual Studio, adhering to several design guidelines,
principles, and theories. An experiment was conducted to evaluate the
usability of the application, which included a set of tasks and data
analysis using descriptive and inferential statistics. The process of
designing and developing the GUI and conducting the experiment
provided valuable insight into the importance of adhering to design
principles and evaluating the usability of an application.
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