ITECH2002 – IT – Systems Modelling – Functional Requirements of Amazon – Case Study Assessment Answer

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Code: ITECH2002

IT Assessment Answer

Assignment Task: ITECH2002 

INTRODUCTION –  ITECH2002 

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 role 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.

MOTIVATION – ITECH2002 

The purpose of the assignment is to ensure that you know:

How to document functional requirements using three tools widely used in the IT industry: brief 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).

How different stakeholders contribute to the 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.

CASE STUDY – ITECH2002

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: Fulfillment by Amazon (FBA), Customer Support and Warehouse. These three subsystems are described in the following sections.

ASSESSMENT TASKS – ITECH2002

This assignment has a group work and individual work components. Please note although we require only one report for the group and individual components, we will be able to track your contribution in the group work component.

For diagramming (use case diagram and domain model class diagram), you may use any tools you are comfortable with – popular web-based tools include draw.io and Lucid Charts. If you use Lucid Chart, then please sign up as a student – a student account has a higher maximum chart limit. If you use draw.io, there is no need to sign up. However, it will be easier as a group if all members within the group use the same tools for creating the domain model class diagram, so you can copy and paste from one diagram to another during consolidation.

The following sections describe the tasks for the group and individual work and the distribution of marks.

Task – Individual work

Stakeholders – ITECH2002 

List four stakeholders of your subsystem, outline their roles, and indicate whether they are internal or external, operational or executive.

Brief use case description – ITECH2002 

Ten brief use case texts for your subsystem – each use case description must have actor(s), use case name and use case description.  The written case study provides at least six use cases for each subsystem, so you need to add four more new use cases. The new use cases must fit in with the case study and your subsystem– for example, the case study is based on Amazon; therefore, a use case for booking a car is irrelevant.

You must include an actor for each use case. Each use case must also apply these three concepts:

perfect technology assumption (week 3).

elementary business processes – EBP (week 3).

can be computerized

Class diagram for each subsystem – ITECH2002 

A class diagram for your subsystem. The class diagram must support all the use cases identified.

For each subsystem, make sure you include at least one use case that is only visible to the staff (not customers), because in assignment 2, you will be designing the screens for one use case.

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