Research Design and Methods for Lemonade Stall, Car Purchase, University Library System, CPI Case Study and Parcel Courier Service Company

This article discusses research design and methods for various scenarios such as lemonade stall, car purchase, university library system, CPI case study, and parcel courier service company. It includes diagrams, object-oriented system design, and development activities.

Running head: RESEARCH DESIGN AND METHODS
Research design and methods
Name of the Student:
Name of the University:
Author Note

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RESEARCH DESIGN AND METHODS
Week 5
List of the main activities at a lemonade stall
The main activities that can take place at a lemonade stall are:
 The customer would order the lemonade
 The customer mentions the criteria for the lemonade
 The lemonade seller takes the order from the customer
 The Lemonade seller prepares the order for the customer.
 The seller enters the appropriate sugar level for the lemonade and the machine
provides the required product for the customers.
 The customer accepts the lemonade and the makes the payment to the seller.
Additional activities required in the lemonade stall
The additional activities which can be performed at the lemonade stall are:
 The customer would be able to select the payment mode required for the payment
after they have received the lemonade.
 The customer would also be allowed to provide a feedback for the lemonade that they
have received.
Activity Grouping
The activities that have been described above can be added to the groups described
below accordingly:
Ordering lemonade
 The customer would order the lemonade
 The customer mentions the criteria for the lemonade

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RESEARCH DESIGN AND METHODS
Order preparation
 The Lemonade seller prepares the order for the customer.
 The seller enters the appropriate sugar level for the lemonade and the machine
provides the required product for the customers.
Payment process
The customer accepts the lemonade and the makes the payment to the seller.
Context Level DFD
Figure 1: Context Level Diagram of the Lemonade Stall
Source: (Created by author)

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RESEARCH DESIGN AND METHODS
Level 0 DFD
Figure 2: Level 0 DFD Diagram of the Lemonade Stall
Source: (Created by author)
Week 7
Application of Object Oriented System design
The customer wants to buy a car and hence using the object oriented approach the
customer has to make an assumption about the classes of cars and variables of the class car
and the customer has to buy an object of the class car. The class car would have variables
such as dimensions, horse power, wheel balance and handling.
List of objects in the scenario
The main objects in the provides scenario are:
Purchase Car object, Owner Object, and Car Data object.

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RESEARCH DESIGN AND METHODS
Figure 3: Object Diagram of Car Purchase Scenario
Source: (Created by author)
A three layered architecture is being considered for the situation provided, hence the
three object considered for the Owner, Car Purchase Interface and the Car Database object.

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RESEARCH DESIGN AND METHODS
Design Class Diagram
Figure 4: Design Class Diagram of Car Purchase Scenario
Source: (Created by author)
Week 8
List of the possible objects
The possible list of objects for the Return books in the university library system
scenario are the:
The list of all the possible objects in this scenario are the Books, Book Holders,
Librarian and the book management system. The three-layer architecture is followed in this,
situation and hence the objects can be classified as first layer in which the book holders and
the librarian would be present. The second layer would be the book management system
application object and the last would be the book storage object.

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RESEARCH DESIGN AND METHODS
Domain Class Diagram
Figure 5: Domain Class Diagram of the Return Book Scenario
Source: (Created by author)
Design Class Diagram
Figure 6: Design Class Diagram of the Return Book Scenario
Source: (Created by author)

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RESEARCH DESIGN AND METHODS
Communication Diagram
Figure 7: Communication Diagram of the Return Book Scenario
Source: (Created by author)

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RESEARCH DESIGN AND METHODS
Week 9
Class Diagram
Figure 8: Class Diagram of the CPI Case Study
Source: (Created by author)

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RESEARCH DESIGN AND METHODS
Expanded diagram
Figure 9: Expanded Class Diagram of the CPI Case Study
Source: (Created by author)
Week 10
Development Activities:
The following development activities are to take place within the parcel courier
service company so that the risks involved with the system can be mitigated easily. It has
been informed that around 30 employees would be hired by the organization and the new
employees are required to be provided with a proper training facility so that they can be
helpful in avoiding any type of risks and errors that can take place if the risks are not
mitigated in proper time.
Training users
It is very important that the users who would be using the system are provided with
the training modules and proper training classes for the training on the software. This would

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RESEARCH DESIGN AND METHODS
ensure that the people who are trained would be able to handle the system efficiently. They
are also required to be provided with proper instruction so that they do not tamper with the
security configuration of the system and also the unintended error in the system would not
occur for the system. The employees would also be able to perform their task on the system
with an increased amount of efficiency which would result in the development of the business
of the organization to a greater extent.
Deployment orders
The deployment of the orders is required so that the users would be able perform the
tasks of deployment very easily and in addition to this, the this would also mitigate the risks
during the deployment of the project for the organization. A module is followed within the
project management team so that the errors during the implementation of the system would
be avoided and this would save the organization from any type of effect towards the financial
criterions and also the scheduling aspect of the project would be not being hampered in any
way.
Support Activities
In addition to the deployment orders for the parcel courier service company the
supporting activities of the company would also be very important and then users of the
system would be benefitted by the activities to a great extent. The system should be able to
incorporate an access control system that would be helpful for the users of the system such as
the administrator to control the access to the system and also restrict the type of data that the
administrator wants to allow the others to view for the system. In addition to this, the
activities that would be also help the risk mitigation area of the system are the usability
experiences of the users and the use of correct modules.

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RESEARCH DESIGN AND METHODS
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