HomeAlone Project

CESY501: Getting Started on Product and Service Design
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Copyright 2011, eCornell. All rights reserved.
CESY501
Getting Started on Product and Service
Design
Submitted By: Kanishk Srivastava

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CESY501
Getting Started on Product and Service Design
Course Project
The course project is designed to give you practical experience applying the tools and
skills the course provides. Completion of the project is a requirement for the course. It is
also an excellent way to build a detailed set of notes about how to initiate the design
process.
Your initial work on the course project involves sketching your design idea and
identifying stakeholders relevant to your design project. In addition, you use a tool
presented in the course to define the system-design context. Later, the course project
invites you to analyze use-cases regarding how the product or service will be used and
derive requirements from them. As a final step, you summarize the requirements.
The five parts of this course project are laid out sequentially. Please complete one part
of the project before proceeding to the next. Please do not submit your project for
review until you have completed Part Five.

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Part One
Make Your Own Sketch
1. Create an annotated product sketch to illustrate the product or service idea you have
chosen. To record your sketch so that it can be submitted to your instructor, you may
do any of the following:
 Create the sketch on paper and scan it
 Create the sketch using a drawing or paint program
 Create the sketch using clip art with the software of your choice
Make sure your sketch includes a title and whatever annotations it may need.
Otherwise, the only requirement for the sketch is that its composition be uniquely
yours and that it adequately conveys your intention. Copy and paste the file into this
document.
Insert sketch:

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2. Describe your product or service idea. Do not write informally: use complete
sentences. When you submit all five parts of your completed project at the end of the
course, your instructor will compare your concept sketch to your written description
of it.
HomeAlone is a wearable device, which helps patients and physicians to track vital
signs like Blood Pressure, Heart Rate, Body temperature, etc. in addition to being a
watch. This device along with a CMS (Central Monitoring System), stores all the data
supplied from the HomeAlone device. The hard drive in the CMS helps storing large
amount of data and seamlessly transmits it to the main server where physicians can log
into the HomeAlone application and monitor the patients’ vitals. CMS is connected with
a Phone Line which enables the HomeAlone device to also act as a phone. Whenever
there is an anomaly noticed in the vitals of the patients, a distress signal is sent to the
“BA Biotech Unit” where a customer service representative speaks directly to the
patients about the health. If the patient is not able to communicate about their health,
the unit will send the message for sending an Ambulance at the patient’s home. The
data is automatically transmitted from HomeAlone Device to CMS at a regular interval of
five minutes. This is the industry setting and can be reduced to a minimum of a minute
by the user. However the device restricts the user go over the 5 minute. HomeAlone
device will be powered by Lithium coin cells and CMS will be powered by the power
socket. It also has a backup battery of 9V which will last the device for 6 hours in case
of power failure. CMS also has USB ports to manually retrieve the data.
Remember to save your work for this part before going further in the course. You will
encounter part 2 of the course project at the end of the next topic, "Your Stakeholders
and Your Mission".

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Part Two
Name the Stakeholders
Before you begin work on this part of your course project, be sure you have completed
the topic, "Your Stakeholders and Your Mission". Please answer the following
questions:
1. Who is the owner of your design project?
 BA Biotech Inc.
2. Who is the customer of your design project?
 Hospitals
 Physcians
 Healthcare Insurance Companies
 Family of patients
 Patients
3. Who is the user of your design project?
 Patients
Identify these individuals using the guidelines presented in this course topic. In some
cases, more than one individual may fill a particular role. If there is some ambiguity,
indicate how you might simplify your consideration of stakeholders and roles.
When you have completed this assignment, remember to save your work. You will
encounter part 3 of the course project at the end of the next topic, "Boundary and
Context".

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Part Three
Complete the Matrix
Before you begin work on this part of your course project, be sure you have finished the topic, "Boundary and Context".
1. Fill in the name of the system, either HomeAlone or Internet Meal Service, at the top of the matrix.
2. Fill in the names of three to five important entities in the appropriate cells in the top row. You may list the internal
entities of the system individually if you wish, or list them together as "system." If you list them individually, be sure to
group them so you are able to draw the system boundary around them.
3. Fill in the names of the three to five important entities in the left-most column, going down. Be sure to use exactly the
same entities in the same order you chose in step 2.
4. Draw a thick boundary around the cells of the matrix that represent the total group of the system entities. You may find
that this boundary includes just one cell of the table or several. Use cell shading or border formatting to clearly
indicate the cells of the matrix that represent the total group of the system entities.
5. Populate the matrix with phrases that specify the relationships between the entities. For example, to specify the
relationship of entity 1 to entity 2, fill in the cell in row 2 column 3.
Notes for Filling in the Matrix
 It is not necessary to specify the relationships of entities with themselves. For example, it isn't necessary to fill in row 2
column 2, because this cell would contain the relationship of entity 1 with itself.
 The contents of the cells in any column X should match the contents of its counterpart, row X. For example, the
contents of row 2 should match the contents of column 2, because they both represent the relationships of entity 1.
Note: You will return to complete this matrix in part 4.

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HomeAlone
Watch
CMS Storage Touchscreen
Display
Special Metal
Patients Watch and Vital
Signal
measuring
device
GUI & User
Interaction
Measures vitals
Lithium Cell Power Source
Transmitters Transmit Signal
between devices
Transmit Signal
between devices
9V battery Auxiliary power
source
USB Manual Data
Transfer
Phone
Connects
BA Biotech Call
and Dispatch
Unit
Connects to
Customer
Service Rep
through CDMA
technology
Connects to
Customer
Service Rep
through CDMA
technology

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Touchscreen Display
HomeAlone Watch CMS Storage
Special Metal
Measures Vitals
Sends Vitals data for storage
Patients
GUI &
User Interaction
Lithium Cell
Power source
Transmitters
Transmit Signals
Transmit Signals
9V battery
Auxiliary
Power Source
Phone
BA Biotech Call and
Dispatch Unit
Connects Connects
Connects to Customer
Service Rep through CDMA
HomeAlone Context Diagram
Watch & vital signals
measuring device
USB
Manual Data
Transfer
Measure
Vitals Data
Display
Data

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Part Four
Describe the Behavior and Expand the Context
Use the tables below to complete Part Four.
1. Identify one primary use-case for your design project.
2. Complete two use-case behavior tables (below) detailing two behaviors for that use-case, specifying the initial
condition of the system for each.
3. Return to the completed context matrix from Part Three of the course project and expand it, using entities you
discovered from the use-case behaviors described in the first part of this assignment.
When you have finished this assignment, please save your work to a convenient location on your computer where you
can easily find it again. You will revisit this document later in the course.

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Part Four—Use Case 1 [Patient measures vitals – Data Save Successful]
Initial Conditions
1. The system is in Watch mode
2.
Behavior Thread
Operator (Patient) System (HomeAlone Watch) CMS Storage device
The patient shall push “Measure”
on touchscreen
The System shall switch to Vital
Sign Mode
The System shall begin measuring
vital signs
The system shall display vital sign
measurements on the display
The patient shall review data
The patient shall click “Save”
The system shall transmit the data
Vital Data received from
the system
The System shall Display “Save
Successful”
The patient shall switch to “Watch
mode”
Ending Conditions
2.

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Notes
1. Assuming CMS is powered on
2.
Part Four—Use Case 2 [Patient measures vitals- Data Save Error received]
Initial Conditions
2.
Behavior Thread
Operator (Patient) System (HomeAlone Watch) CMS storage device
The patient shall push “Measure”
on touchscreen
The System shall switch Vital Sign
Mode
The System shall begin measuring
vital signs
The system shall display vital sign
measurements on the display
The patient shall review data
The patient shall click “Save”
The system shall transmit the data
Vital Data not received
The System shall display “Save
Error”
The patient shall check CMS
storage device.

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Ending Conditions
1. The Data not saved.
2. The system is in Watch mode.
Notes
1. Assuming CMS storage device is not powered on.
2. Assuming CMS storage device back-up battery is not present.
3. Assuming CMS storage is not functioning properly.
Part Five
Define Functional Requirements
Before you begin work on this part of your course project, be sure you have finished the topic, "Summarize and Finalize
Requirements."
Step 1: List and Summarize the Functional Requirements
1. List your detailed requirements in the "Source" column of the table below. Add rows as needed.
2. Once you've created your list, identify possible groupings of two or more detailed requirements that you could
summarize to create a single more general abstract requirement. For each grouping, develop a summarized
requirement that conforms to the guidelines presented in this course. You may use more or fewer groupings than
appear in the table below.

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3. In the table below called Originating Requirements, create a single list consisting of:
Source
ThesystemshallswitchtoVitalSign
Mode
Thesystemshallmeasure
vitalsigns
Thesystemshalldisplayvital
signmeasurementson
touchscreen
Thesystemshalltransmit
thedata
Thesystemshall
display"Save
Successful"and
"SaveError"
TheSystemshallswitchto
VitalSignMode
TheSystemshallswitchtoVitalSign
Mode
TheSystemshallbegin
measuringvitalsigns
signmeasurementsonthe
display
thedata
TheSystemshall
Display“Save
Successful”
TheSystemshallbegin
measuringvitalsigns
TheSystemshall
display“SaveError”
signmeasurementsonthe
display
thedata
TheSystemshallDisplay
“SaveSuccessful”
TheSystemshalldisplay
“SaveError”

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 Summarized requirements
 Detailed requirements that did not require summarization
This list contains the functional requirements for your system.
Originating Requirements
The system shall switch to Vital Sign Mode.
The system shall measure vital signs.
The system shall display vital sign measurements on touchscreen.
The system shall transmit the data.
The system shall display "Save Successful" and "Save Error".

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Step 2: Finalize the Functional Requirements
4. Review your list of functional requirements.
Are you aware of any issues that you should resolve?
Do any of your requirements need to be clarified or revised in any way?
In the space below, please enter the criteria you used to evaluate your requirements, and make a note of any revisions
you made at this stage.
1. The system shall switch to Vital Sign Mode – This is a separate screen from the watch screen. The digital watch mode will
switch to the vital sign mode and all the vital measurements will be displayed on the watch.
2. The system shall transmit the data – There will be an icon on the watch screen which will display if the HomeAlone Watch
is connected to the CMS storage device, similar to the Bluetooth icon.
When you have finished with this document, save it with the name
CESYS501_XYZ replacing XYZ with your initials.
Return to the course and use the directions to submit the project to
your instructor for review.

HomeAlone Project

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