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Pervasive and Immersive User Experience
Case Study (Design and prototype)
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ISY91001 – Pervasive and Immersive User Experience
School of Business and Tourism
Session 1, 2020
Assignment 3 – Case Study (Design and Prototype)
This assignment is worth 40% of the total marks and is due on Friday 2nd October 2020.
The purpose of this assignment is to demonstrate your ability to design and prototype a sample
Internet of Things (IoT) system for a sample case study, focusing on user experience design. In
designing the system, you need to apply the skills you have learnt in this unit to provide the best
implication for user experience design of an IoT system.
Your task in brief:
• You are required to propose and design an Internet of Things (IoT) system for a case study.
The case study, which you design the IoT system for, is of your own choosing. The case
study must be relevant to the area of IoT that you have worked on in assignments 1 and 2.
• The IoT system you propose should be of small to medium size/complexity.
• To design the proposed IoT system you will need to thoroughly analyse the case study and
its requirements. Although you will design the system for a case study of your own
choosing, you should design the system for an area that you have some interest/prior
knowledge in; or if you are already have a job, you would better consider an IoT system
for the company/industry you work for. Familiarity with the business will make it easier to
propose and design a suitable IoT system.
• You should work on this assignment individually (This is NOT a group assessment).
Scenario and requirements:
Imagine that you have been contracted by a company (or asked by the company you work for) to
design an IoT system for a specific area. In the course of this assignment, you will prepare a design
and prototype report, using the provided template, for the proposed system.
Your planning report must
i. use the template provided on MySCU under assessment menu
ii. be no more than 3000 words,
iii. use a formal and academic writing style with a clear structure (Harvard),
iv. include an executive summary, introduction, body, and conclusion in your report,
v. use headings if appropriate, and
vi. address each of the following steps to complete the report:
(1) Identify the case study – Select a case study to apply your designed IoT system. The case
study MUST be in the area that you have already evaluated critically, in Assignment 2.
Relevant application areas within IoT include for instance smart homes, smart cities,
wearables, connected industries, IoT in agriculture (smart farming), connected healthcare,
smart energy, smart learning, connected cars, smart retail, smart supply chain, and so forth.
Outline the problem description, system capabilities, and the expected benefits (maximum
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(2) The connected devices (things) – Identify all applied connected devices to pair with
your IoT application’s needs. For each connected device, define the following
specifications (maximum 300 words):
a) Type of the connected device: specify whether it is multipurpose computer,
specialized embedded device (embedded hardware/software), connected sensor, or
passively trackable object. (e.g. a light with an embedded motion detection sensor, a
temperature sensor, …)
b) Specify whether it is a sensor or an actuator. Give more details.
c) Powering type of each device (e.g. battery, solar), and how the powering affects UX.
d) Accuracy level of the sensors (e.g. a temperature sensor accurate to within +/- 2
You must identify at least 4 connected devices/sensors and justify them. Provide a table
to list all connected devices with details outlined above.
(3) The technology of connectivity – Define how the connected things communicate with
one another and/or with different networking components. (maximum 300 words):
a) Select the connectivity type of each device/sensor (e.g. WiFi, Bluetooth, RFID,
NFC, ZigBee, …)
b) Describe whether each device is connected intermittently or always-on.
c) Describe how important latency and responsiveness are in your system. Explain how you
manage expectations in designing around the limitations.
d) Provide system architecture diagram of your IoT system (System architecture defines
the path through which one device connects to another). Describe what architecture
form you will implement for your IoT system (e.g. Dedicated gateway, smartphone
as gateway, direct internet connection, device-to-device connections, service-toservice connections).
e) If there is a local network involved in the system, specify the type of the network
(e.g. Bluetooth, proprietary radio, ZigBee and Zwave, etc.)
f) Specify the network communication pattern of each device (push, pull, or polling),
and justify your choice.
g) Specify an IoT application protocol for your system with justification (HTTP or
h) Provide a map of the interrelationships between devices in your system from a
network structure (e.g. figure 3-25 in the reference book).
(4) People and Context – Complete the following tasks (maximum 300 words):
a) Provide a list of relevant actors, stakeholders and the roles.
b) Identify the needs of each actor/stakeholder of the system (Taxonomy of user
c) Provide a table to represent starter questions about actors and roles (See table 5-1 of
the reference book).
d) Explain different aspects of the context of interactions for each device and for the
system as a whole (e.g. operational, behavioural, sociocultural etc., if relevant).
e) Provide a table to represent starter questions for each aspect of context (See table 5-
2 of the reference book).
f) Describe if you prefer to use any technique and tactic in order to answer the
questions about investigating people in context (e.g. maps, timelines, diaries etc).
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(5) Product/service definition and strategy – Complete the following tasks (maximum 300
a) Describe how your system combines devices and services.
b) Provide a table to represent what devices/services are the focus of UX.
c) Explain the business model of your IoT system. Describe if your system will be
generating new business from new customers, or generating more business from
d) Briefly describe how you will bring your digital business model to the selected
physical products in your IoT system.
(6) Interface and Interactions – Complete the following tasks (maximum 300 words):
a) For each of the connected devices, determine the interaction type (input/output).
Specify the form of interaction (e.g. physical controls, visual and screen interfaces,
audio and voice interfaces, gestural interaction and so on), and justify that.
b) Describe the primary means of control of the system. If there is a mobile
app/software/web UI as the primary means of control, give details of the user
interface. Use a wireframe software to prototype everything representing various
elements of the screen (pages, options, menus, buttons, input and output elements,
etc.), if there is any hardware as a primary control unit of the system, elaborate on
c) Discuss the accessibility of the devices and the system as a whole. Provide
accessibility table with appropriate questions.
d) Discuss how you are intending to make your system interactions universal.
(7) Cross-Device Interactions and Interusability – Explain about how in your design, UIs
work together to create a coherent understanding of the overall system, and how the user
may move between using different devices (maximum 300 words):
a) Provide a conceptual model of your system (including user and design model) and
draw relevant diagram(s).
b) Determine the right composition pattern for the service and provide the diagram.
How the composition pattern has been selected in accordance with UX design
principles of IoT?
c) How have you addressed the consistency throughout the system? Give some
d) Explain the continuity of your system. Discuss about whether the flow of data and
interactions is in a coherent sequence across devices. How have you addressed data
and content synchronization in your system. Justify your answer with technical
Note that your system’s conceptual model and composition should be in line with your
(8) Interoperability of the System – Discuss interoperability of the connected devices at
different levels of system architecture in your IoT system (maximum 300 words):
a) How can connected devices in your system interoperate? Explain interoperability at
different levels of your system? Discuss interoperability of the system in each layer
of the interoperability model, separately (Technology layer, data layer, human layer,
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b) What approach to interoperability have you selected? Why? What would be the
implications of the approach on the user experience of your system?
c) What data types are transmitted between the edge devices? Is there any interoperable
data in this system?
(9) Security and Privacy – Discuss security and privacy challenges in your IoT scenario
(maximum 300 words):
a) Discuss about security (confidentiality, integrity and availability) of your IoT system
(e.g. What form of authentication is used for necessary part/devices of the system
such as password, …).
b) What requirements have you considered to design a usable IoT security in your
system? (Limiting the damage that can be caused, keeping devices secure, making
authentication easier, etc.)
c) Discuss about Information and data privacy of your system. Explain if there are any
predictable privacy issues relevant to any stakeholder in your system, and how these
issues are addressed.
Assessment criteria for the assignment
Refer to the above specific questions, and address them in your report. This report is worth 40
marks for the unit. The criteria used to assess the report are:
Identify the case study
The connected devices (things)
The technology of connectivity
Users and Context
Product/service definition and strategy
Interface and Interactions
Cross-Device Interactions and Interusability
Interoperability of the System
Security and Privacy
Report format (Executive summary, introduction, conclusion
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Mark deductions (after):
Not using the report template
Not writing Report Title, Student name, Student Number, etc. at the first page
Not writing the Executive Summary
Not writing the Introduction and Conclusion sections
Exceeding the maximum word-limit
Late submission penalty
5% per day
• Report Template: Students must use the report template, available at the Assessment
page, to submit this Assignment. Information regarding mark distribution, word-limit, etc.
in the template file is for the whole assignment.
• Word-limit: The maximum word-limit will be strictly applied. The marker can deduct
marks for writing over this word-limit. So, make sure your report is completed within the
given word-limit. There is no maximum word-limit applicable for Title, Executive
Summary and appendices.
• Start early and submit on-time: Avoid any pitfalls that may arise due to late start. Thus,
start your assignment as soon as possible to submit on-time. For late submissions, the
standard assessment submission policy will be applied (see the unit profile).
• Appendix: You may add appendices to document any additional material you wish to
include such as tables, diagrams, figures, or other supplementary material. Appendices do
not contribute to the word count of the document.
• Reference: You should add a reference section and include any references, including
publications (literature, books, etc.), which you want to refer to support your report.
• Late Submission: This assignment will be due on Friday, 2nd October 2020, at 11:00 pm.
A penalty of 5% of the available mark will be deducted from the actual mark for each day
of late submission up to five days.
• Consultation: You will have the opportunity to show your assignment draft to your
tutors/unit assessor for feedback. Several assignment consultation slots will be organised;
follow the announcements from the unit assessor.
• Contact: Please contact the unit assessor/lecturer/tutors if you have any issues or
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