A large, fast-food chain unveiled a new touch
screen register for its franchises. Each cashier was assigned a user id and
password combination to log in to the register. The system allowed the
incorrect password to be entered four (4) times before the register would lock
and require a manager to unlock it with a key card. To prevent unauthorized
access, the registers would lock after three (3) minutes if the screen was not
touched. When the register locked, only the cashier who was logged in prior to
it locking could unlock it without a system restart.
After a few days in operation, restaurant managers
started complaining about the amount of time they were spending unlocking the
registers. Some cashiers were forgetting their user Id and password, so other
cashiers would log in for them. It also seemed that the button layout made it
easy for the cashiers to key in the incorrect password. The managers also
complained that cashiers would leave for a break or end their shift and forget
to log out of the locked register. The managers would have to reboot the
system, a three to five (3-5) minute process in order for the next cashier to
log in. Additionally, managers noticed that grease was building up on the touch
screens, making them less responsive.
Write a five to eight (5-8) page paper in which
you:
1.
Analyze the new system and determine the design issues with this new
system.
2.
Describe how you would correct the design issues with the system to make
the restaurant managers happy.
3.
Create a design plan that:
1.
Lists and explains the tasks associated with improving this
interface.
2.
Contains at least six (6) tasks.
3.
Includes realistic time estimates for each task to be completed.
4.
Analyzes the development of the system in your plan.
5.
Analyzes the testing of the system in your plan.
6.
Analyzes the implementation of the system in your plan.
4.
Examine how this system balanced security and usability, and explain the
challenges of incorporating system security and system usability into a design.
5.
Suggest changes that could be made to the security of this system to still
meet security objectives but make the system more usable.
6.
Use Microsoft Visio or an open source alternative, Dia, to create a
graphical representation of your proposed interface. Note: The graphically
depicted solution is not included in the required page length.
7.
Use at least three (3) quality resources in this assignment. Note:
Wikipedia and similar Websites do not qualify as quality resources.
Your assignment must follow these formatting
requirements:
·
Be typed, double spaced, using Times New Roman font (size 12), with
one-inch margins on all sides; citations and references must follow APA or
school-specific format. Check with your professor for any additional
instructions.
·
Include a cover page containing the title of the assignment, the student’s
name, the professor’s name, the course title, and the date. The cover page and
the reference page are not included in the required assignment page length.
·
Include charts or diagrams created in Excel, Visio, MS Project, or one of
their equivalents such as Open Project, Dia, and OpenOffice. The completed
diagrams/charts must be imported into the Word document before the paper is
submitted.
The specific course learning outcomes associated
with this assignment are:
·
Describe the usability properties of interactive systems.
·
Describe the inherent design issues across HCI environments
·
Develop an interface `
·
Use technology and information resources to research issues in
human-computer interaction.
·
Write clearly and concisely about HCI topics using proper writing mechanics
and technical style conventions.
