The document outlines a case study regarding the implementation of a new touch screen register system at a large fast-food chain, detailing design issues such as user ID and password management, register locking, and usability complications faced by cashiers and managers. It requires the development of a detailed paper analyzing these design issues, proposing improvements, and creating a comprehensive design plan with associated tasks, time estimates, testing, and implementation strategies. The assignment emphasizes balancing security with usability while adhering to specific formatting and resource requirements.

1. DEVRY CIS 524 Week 7 Case Study 3 Security NEW
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Case Study 3: Security
Due Week 7 and worth 100 points
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:

2. Analyze the new system and determine the design issues with
this new system.
Describe how you would correct the design issues with the
system to make the restaurant managers happy.
Create a design plan that:
Lists and explains the tasks associated with improving this
interface.
Contains at least six (6) tasks.
Includes realistic time estimates for each task to be completed.
Analyzes the development of the system in your plan.
Analyzes the testing of the system in your plan.
Analyzes the implementation of the system in your plan.
Examine how this system balanced security and usability, and
explain the challenges of incorporating system security and
system usability into a design.
Suggest changes that could be made to the security of this
system to still meet security objectives but make the system
more usable.
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.
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

3. 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.