The document summarizes responses from classmates on a discussion forum about quality of service and user interface design. One classmate responds that a 1.5 second delay for user inputs in a design project is unacceptable according to response time models because it does not meet user expectations for quick responses. They also discuss techniques for improving quality of service like prioritizing data traffic. Another classmate discusses strategies for creating consistent error messages across an application, such as using specific, constructive messages and appropriate formatting. They also argue that animation can be challenging to use without distracting users if not implemented carefully.

1. CIS 524 Discussion 1 post responses.
Respond to the colleagues posts regarding:
"Quality of Service" Please respond to the following:
• Your design team presents a project to you, in which most
inputs seem to have about a 1.5-second delay before a response.
The lead designer has decided this response is acceptable.
Analyze response-time models and decide if the response time
in the presented project is acceptable. Explain why it is or is
not.
• Evaluate the importance quality of service has to
designers. Choose two areas discussed in the textbook you
would focus your attention to ensure quality of service for a
team of designers that you were managing. Justify your choices.
NM’s post states the following:
• Your design team presents a project to you, in which most
inputs seem to have about a 1.5-second delay before a response.
The lead designer has decided this response is acceptable.
Analyze response-time models and decide if the response time
in the presented project is acceptable. Explain why it is or is
not.
Hello Classmates and Professor,

2. Already halfway through the week.
You have to remember quality of service refers to any
technology that manages data traffic to reduce packet loss,
latency and jitter on the network and it controls and manages
network resources by setting priorities for specific types of data
on the network.
Providing sufficient Quality of Service (QoS) across IP
networks is becoming an increasingly demand in today’s IT
enterprise infrastructures. QoS is necessary for voice and video
streaming over the network and over all internet usage.
Some applications that are run on the network are sensitive to
delay. These applications commonly use the UDP protocol as
opposed to the TCP protocol. QoS helps manage packet loss,
delay and jitter on your network infrastructure.
Organizations can achieve QoS by using certain tools and
techniques, such as jitter buffer and traffic shaping. For many
organizations, QoS is included in the service-level agreement
(SLA) with their network service provider to guarantee a certain
level of performance.
https://www.networkcomputing.com/networking/basics-qos
Response time is the time between the submission of a request
and the completion of the response. Your design must take this
into consideration because after the users presses their option it

3. is critical that user expectations are met with great return speed
of task performance with little to no error rates and/or handling
processes and procedures. This will affect the user’s interest
and quality assessment you want to avoid the user from having
frustrating experiences with your design especially if they had
previous experience and tolerance for delays. Your design
should also be scalable A scalable system is one that can handle
increasing numbers of requests without adversely affecting
response time and throughput.
Lastly, your design should be tested for the following:
* service time
The time between the initiation
and completion of the response to a request.
* think time
The time the user is not
engaged in actual use of the processor.
* throughput
The number of requests
processed per unit of time.
* wait time
The time between the
submission of the request and initiation of the response.

4. https://docs.oracle.com/cd/A95428_01/a86059/concpts.htm
• Evaluate the importance quality of service has to
designers. Choose two areas discussed in the textbook you
would focus your attention to ensure quality of service for a
team of designers that you were managing. Justify your choices.
The importance of QOS is to manage your network and data
traffic and to ensure there is enough bandwidth for the
performance of critical applications so users get the best
experience without lapse time, bottle necks, packet lose or
latency. You need to have the proper flow of data by
prioritizing specific traffic. QOS is necessary for video
streaming over the internet (which is most popular today).
The quality of online services by the allocation of bandwidth
for prioritization level and take control of traffic by providing
smooth fast internet connection to prevent bottlenecks and
overloads, overflows and dropped traffic
Develop user interface designs so that QoS is high I would
focus my attention on the usability elements by selecting a good
server with speed and avoid downtimes. Make sure your HTML
doesn’t consists of broken links and focus on visual factors
(colors, font branding, etc.).
I would also increase QoS on my network by using QoS
common methods with scheduling (priority queuing) , traffic
shaping(control the rate and amount of network traffic),
admission control (predefined router and switch parameters) and

5. resource reservations (bandwidth and cpu timing) by using QoS
metrics
https://searchunifiedcommunications.techtarget.com/definition/
QoS-Quality-of-Service
https://www.brainkart.com/article/Techniques-to-Improve-
QoS_13490/
CIS 524 Discussion 2 post responses.
Respond to the colleagues posts regarding:
"Balancing Function and Fashion" Please respond to the
following:
• Error messages are a key part of an overall interface
design strategy of guidance for the user. Discuss strategies to
ensure integrated, coordinated error messages that are
consistent across an application.
• Choose the one topic covered in Chapter 11 (error
messages, non-anthropomorphic design, display design, window
design, and color) that creates the biggest challenge to
achieving balance between function and fashion. Support your
response.
JN’s post states the following:
Greetings Class,

6. Several strategies to ensure integrated, coordinated error
messages are consistent are the following: Specificity,
Constructive guidance and positive tone, and appropriate
physical format (Schneiderman, B., 2018). Being as specific as
possible in the error message will help guide the debugging
process as well as assist with troubleshooting and helping the
user better understand the problem. One example of a poor
message is "Error 123", something better would be "Error 123,
system unable to locate file c:test.file". Constructive guidance
and positive tone assist the user with understanding what the
problem is and how to overcome it; for instance, "Unable to
Access Resources" a better format of the error message would
be "Network Connection A is down, unable to connect to remote
source. Please reconnect the network and try again". This
message helps the ensure figure out the true problem and get
around it. Appropriate physical format comes in the way the
message is delivered, this could be font, format, spelling,
grammar, and also the location/pop-up of the message. This
should help focus the user's attention to "an error has occurred"
and then allow them to easily read, understand, and take the
necessary steps to resolution.
Utilizing animation can be a difficult challenge when
attempting to achieve the balance between function and fashion.
Human eyes are drawn to moving objects/pictures, the use of an
animation can be very helpful and display what is properly
needed grabbing the user attention; however, should the
implementation be done poorly, it can distract and waste time
(Schneiderman, B., 2018). Take for example a network
Topology and utilize an animation that slowly adds connections
to the devices being displayed. As more devices are connected
the more congested the image becomes making it much harder
to read. The important note is to capture the attention, ensure
it's necessary and worth the time of the user, and ensure it is not
too flashy nor too cumbersome.

7. -John
Refernce:
Shneiderman, B. (2018). Designing the user interface: strategies
for effective human-computer interaction. Boston: Pearson.