ITECH2002 - Systems Modelling
Assignment 1 Specification – 20 19
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Systems Requirement Specification
1. TIMELINES AND EXPECTATIONS
Due date: Monday, Week 6, 11:55pm.
Weighting: 15%, maximum mark: 100.
Minimum time expectation: 30 hours.
Your assignment will be assessed by your tutor or lecturer if your lecturer is also your tutor.
You will receive your mark and written feedback via Moodle two weeks after the due date
or submission, whichever is later.
2. INTRODUCTION
You have been hired as a systems analyst to work with two other analysts. Your task is to
document the functional requirements of Amazon, an online retail system, using UML. In a
typical learning environment, assignments are often based on hypothetical case studies, like
those in the tutorials. Such case studies, however, are limiting because you have little
opportunity to investigate how real systems work, thus making it difficult to appreciate the
complexity of a real system, the need of analysis and the usefulness analysis tools. We hope
that by investigating a real system you will appreciate the importance of analysis and the
ole of UML as a communication and analysis tool.
During the analysis stage, UML is used to specify systems requiremets, which will be used to
design a computer system. In this assignment, we will use UML to document a system that
has already been computerised – like reverse engineering a system (from an existing
computer system to specification). This has another advantage in that you can evaluate if
your specification is close enough to the real system. However, be careful when reverse
engineering so you do not also include the design decisions – please see your lecturer when
you are unsure – we are more than happy to give you feedback.
Please note that the case study provided here is incomplete and you need to investigate
Amazon in order to complete the assignment, such as by visiting their website or following
Amazon development in the news. You may also come up with functionality that do not
exist in Amazon but would add values to the business, but please discuss with your lecturer
first.
Section 3 describes the motivation behind the design of this assignment; Section 4 provides
information on how and what to submit (note that Moodle has been setup so there is only
one submission from each group). The case study can be found in Section 5. Section 6
describes the tasks for individual and group work.
ITECH2002 - Systems Modelling
Assignment 1 Specification – 20 19
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3. MOTIVATION.
The purpose of the assignment is to ensure that you know:
1. How to document functional requirements using three tools widely used in the IT
industry:
ief use case description, use case diagram and domain model class diagram.
The use case and domain model class diagrams are part of the Unified Modelling
Language (UML).
2. How different stakeholders contribute to definition of requirements.
The assignment addresses the following learning outcomes:
K1. Explain how models are used to assist in analysing and modifying existing business
systems;
K2. Define various roles involved in the processes of system analysis;
K3. Describe techniques used to gather required information for system analysis;
K4. Explain the various stages of the system development life cycle;
S1. Identify appropriate models for given scenarios;
S2. Develop various models using a professional CASE tool;
S4. Perform Object Oriented Analysis and Design to construct various object models used to
communicate the scope and requirements of the project.
A1. Write integrated reports, using appropriate models, providing detailed analysis of given
textual scenarios.
4. WHAT AND HOW TO SUBMIT
1. Moodle has been set up so each group submits only one document – anyone from a
team can submit.
2. Submit a Word or text document which has the link to a GoogleDoc document which
has the group work and individual work. This GoogleDoc document must be complete
(please upload and share the template file in Moodle). After uploading, you must share
the GoogleDoc with your lecturer and tutor.
5. CASE STUDY
The assignment is based on the online shopping system www.amazon.com.au. Some
functionality or processes may have been simplified or modified to meet certain learning
criteria. We will investigate three subsystems in Amazon: Fullfilment by Amazon (FBA),
Customer Support and Warehouse. These three subsystems are described in the following
sections.
http:
www.amazon.com.au
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Assignment 1 Specification – 20 19
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5.1 Fullfillment by Amazon (FBA) Subsystem
FBA is a business model where sellers leave their merchandice at Amazon warehouses and
Amazon ships the products on behalf of the sellers. An overview of FBA can be found here
https:
sellercentral.amazon.com/gp/help/external/ XXXXXXXXXX?language=en-
US&ref=efph_201023020_cont_ XXXXXXXXXX
Before resellers can use FBA, they must create a list of items they want to sell under FBA,
they then ship the products to Amazon by creating a shipping plan. To create a shipping
plan, Amazon needs to know:
- which product and the quantity of each product that will be sent.
- the location where the items will be sent from, which could be the address of your
warehouse, home or supplier.
- whether the resellers want Amazon to prepare the product for shipment to customers.
Amazon charge per-item fee for each item it prepares on behalf of resellers.
- whether the resellers want Amazon to label the products. Amazon also charge labelling
per item. Resellers who want to label the product themselves print the labels and affix
them to the products (make sure that each product has appropriate barcode).
Finally, Amazon displays the fullfillment center(s) your products will be assigned to.
Is it worth selling with FBA? Anyone should be able to evaluate this –is FBA worth it? Once
you have signed up as an FBA reseller, you would use a different tool for evaluating this
decision.
For the shipped products to appear on Amazon, resellers have to register the products on
Amazon online shop. Information required is product name, the image(s) of the product,
SKU, dimension, weight, price, FNSKU, UPC/EAN and ASIN. Resellers also need to specify
the categories, subcategories which may have multiple levels and some optional description
specific to the categories. For example, to sell a watch, you need to specify the type of
and. Resellers can upload information of the products individually or in bulk.
FBA resellers can review their inventory to identify slow moving stocks. They can also
launch a campaign to promote selective products from within Amazon using Lightning Deal.
To create a Lightning Deal, specify how many units are available for the deal and the price
during the deal, which is valid for 24 hours. The original price must stay the same, so
Amazon can display the original price and the special price.
Amazon shoppers can view the deal when they click on “Today’s Deals” on the top menu as
in Figure 1 on the next page. Resellers may offer further incentives such as free shhipping to
further entice consumers.
https:
sellercentral.amazon.com/gp/help/external/ XXXXXXXXXX?language=en-US&ref=efph_201023020_cont_ XXXXXXXXXX
https:
sellercentral.amazon.com/gp/help/external/ XXXXXXXXXX?language=en-US&ref=efph_201023020_cont_ XXXXXXXXXX
https:
www.webopedia.com/TERM/S/SKU.html
https:
www.webopedia.com/TERM/S/SKU.html
https:
www.amazon.com/gp/selle
asin-upc-isbn-info.html
https:
www.amazon.com/gp/selle
asin-upc-isbn-info.html
https:
www.amazon.com.au/gp/help/custome
display.html?nodeId= XXXXXXXXXX
ITECH2002 - Systems Modelling
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Figure 1. A snapshop of a section of an Amazon website. Customers click on “Today’s Deals”
to list products under this deal.
We have looked at how resellers use Amazon’s FBA. Next we will look at what Amazon’s
management need from the FBA system. A manager need a way to evaluate the
effectiveness of the FBA offering, so the system must produce reports which will help the
management monitor the performance of FBA.
This conclude the discussion on the FBA subsystem. The next section describes the
Customer Support and Returns subsystem. Note that each student work with only one
subsystem.
5.2 Customer Support and Returns Subsystem
The Amazon support team provides support via live chat or telephone only. A human agent
will then be assigned to the live chat or telephone call.
For a telephone call, the customer will be prompted to enter their invoice number and
placed on a queue. The system will then inform customers how far they are in the queue
and the average waiting time. They will also be given a dial back option without losing their
place on the queue. If customers prefer the dial back option, then the system reads cu
ent
number out and ask if they want to be rung back on that number. If the system is unable to
ead customer’s number, then it simply asks for the number. In any case, the system must
confirm the number before terminating the call. The phone call is then assigned to the next
available support agent and the customer being served will be removed from the queue. A
ticket is then created and the system must keep track of who support the customer and the
detail of the conversation. At then end of the conversation, a request is marked for closed,
follow-up or escalated. When the status is escalated, the support agent must choose the
team required to resolve the issue.
In some cases, customers want to ask for a refund or replacement. If this is the case, they
must articulate why they need a refund or replacement. If a replacement or refund is
approved, the support agent will then send an electronic return label so customers to be
affixed to the return package. The label has the customer name, customer address, phone
number, invoice number and a system generated return ID.
As an online store in Australia, Amazon and its resellers